One number is 6 less than 5 times the other number. Their sum is 60. Find the numbers.

Answers

Answer 1

Answer:

The numbers are 11 and 49.

Step-by-step explanation:

x = 5y - 6 This is just the first sentence written as an equation.

x + y = 60 This is just the second sentence written as an equation.

5y - 6 + y = 60 Substitute x for what you know it is equal to

6y - 6 = 60 Collect like terms

6y = 66 Add 6 to each side

y = 11 Divide each side by 6

x = 5 × 11 - 6 Substitute y for what you know it is

x = 55 - 6 Simplify by working out 5 × 11 = 55

x = 49 Subtract 6 from 55 to get 49


Related Questions

if i0i0i_0 = 20.0 w/m2w/m2 , θ0θ0theta_0 = 25.0 degreesdegrees , and θtaθtatheta_ta = 40.0 degreesdegrees , what is the transmitted intensity i1i1i_1 ? Express your answer numerically in watts per square meter.

Answers

The transmitted intensity i1 is approximately 19.32 watts per square meter.

An indicator of a physical phenomenon's strength or power, such as light, sound, or radiation, is its intensity. It is often expressed in terms of the quantity of energy being transmitted or received per unit area or volume. For instance, the intensity of light is expressed in watts per square metre, while the strength of sound is expressed in watts per square metre per hertz. Distance, direction, and the qualities of the medium through which the phenomenon is transmitted can all have an impact on intensity.

To find the transmitted intensity (i1), we need to use the formula:

[tex]i1 = i0 * cos(θ0 - θta)[/tex]

where i0 is the initial intensity, [tex]θ0[/tex]is the initial angle, and [tex]θta[/tex] is the transmitted angle.

Step 1: Calculate the difference between the angles:
[tex]Δθ = θ0 - θta[/tex] = 25.0 degrees - 40.0 degrees = -15.0 degrees

Step 2: Convert the angle difference to radians:
[tex]Δθ[/tex](in radians) = -15.0 degrees *[tex](\pi /180)[/tex] ≈ -0.2618 radians

Step 3: Calculate the cosine of the angle difference:
[tex]cos(Δθ) ≈ cos(-0.2618)[/tex]≈ 0.9659

Step 4: Calculate the transmitted intensity (i1):
i1 = i0 * [tex]cos(Δθ)[/tex] = 20.0[tex]W/m^2[/tex] * 0.9659 ≈ 19.32 [tex]W/m^2[/tex]

So, the transmitted intensity i1 is approximately 19.32 watts per square meter.


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.I have a linear algebra quetion related to eignevalues and eigenvectors
If v1=[ -5 -4]
and v2= [ -4 -3]
are eigenvectors of a matrix A corresponding to the eigenvalues λ1=3 and λ2=−1, respectively,
then
1. A(v1+v2)= ( The answer is a vector0
2. A(−2v1)= (The is a vector)

Answers

1. the answer is the vector [-11 -9] and 2. The answer is the vector [-30 -24].

First, let's recall the definition of eigenvectors and eigenvalues. An eigenvector of a matrix A is a non-zero vector v such that when A is multiplied by v, the result is a scalar multiple of v. That scalar multiple is called the eigenvalue corresponding to that eigenvector. In other words, if v is an eigenvector of A with eigenvalue λ, then Av = λv.
Now, let's use this definition to answer your questions.
1. A(v1+v2) = Av1 + Av2 = λ1v1 + λ2v2. Substituting in the given values of λ1, λ2, v1, and v2, we get:
A(v1+v2) = 3[-5 -4] + (-1)[-4 -3]
= [-15 -12] + [4 3]
= [-11 -9]
So the answer is the vector [-11 -9].
2. A(-2v1) = -2Av1 = -2λ1v1. Substituting in the given value of λ1 and v1, we get:
A(-2v1) = -2(3)[-5 -4]
= [-30 -24]
So the answer is the vector [-30 -24].

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1.the answer is the vector [-11  -9] and  2.The answer is the vector [-30  -24].



Since [tex]v_{1}[/tex] and [tex]v_{2}[/tex] are eigenvectors of matrix A, we know that:
A [tex]v_{1}[/tex] = λ1 [tex]v_{1}[/tex]
A [tex]v_{2}[/tex] = λ2 [tex]v_{2}[/tex]
Let's use this information to solve the given problems:
1. A( [tex]v_{1}[/tex] + [tex]v_{2}[/tex] ) = A [tex]v_{1}[/tex]  + A [tex]v_{2}[/tex] = λ1 [tex]v_{1}[/tex] + λ2 [tex]v_{2}[/tex]
Substituting the values of λ1, [tex]v_{1}[/tex] , λ2, [tex]v_{2}[/tex] and  that were given:

A( [tex]v_{1}[/tex] + [tex]v_{2}[/tex] ) = 3[-5  -4] + (-1)[-4  -3]
= [-15  -12] + [4 3] = [-11  -9]
So the answer is the vector [-11  -9].
2. A(-2[tex]v_{1}[/tex] ) = -2 A [tex]v_{1}[/tex]
Using the given equation for A [tex]v_{1}[/tex] , we get:
A(-2[tex]v_{1}[/tex] ) = -2 λ1 [tex]v_{1}[/tex]
Substituting the values of λ1 and [tex]v_{1}[/tex]  that were given:

A(-2[tex]v_{1}[/tex]) = -2(3)[-5  -4] = [30  24]
So the answer is the vector [30  24].

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Please help me I need help urgently please. Ben is climbing a mountain. When he starts at the base of the mountain, he is 3 kilometers from the center of the mountains base. To reach the top, he climbed 5 kilometers. How tall is the mountain?

Answers

Answer: 4

Step-by-step explanation:

lets call the height y

3^2 + y^2 = 5^2

9+y^2 = 25

y^2 = 25 = 9

y^2 = 16

y = 4

Air traffic controllers are watching two planes on radar to ensure there is enough distance between them. plane a took off at 10:00 a.m., and plane b took off at the same runway 5 minutes later. both planes are flying at the same direction angle and the same path. at 10:10 a.m., the airport’s radar system detected plane a at (24, 18) and plane b at (8, 6). the scale on the radar is 1 unit = 25 miles. which vector represents the path from plane a to plane b, and what is the actual distance between them?

Answers

To find the vector representing the path from plane A to plane B, we can subtract the coordinates of plane A from the coordinates of plane B.

The coordinates of plane A are (24, 18) and the coordinates of plane B are (8, 6).

Subtracting the coordinates:

Vector AB = (8 - 24, 6 - 18)

= (-16, -12)

Therefore, the vector representing the path from plane A to plane B is (-16, -12).

To find the actual distance between the planes, we can use the distance

formula:

Distance = √((x2 - x1)^2 + (y2 - y1)^2)

Using the coordinates of plane A (24, 18) and plane B (8, 6):

Distance = √((8 - 24)^2 + (6 - 18)^2)

= √((-16)^2 + (-12)^2)

= √(256 + 144)

= √400

= 20

Therefore, the actual distance between plane A and plane B is 20 units.

Given that the scale on the radar is 1 unit = 25 miles, the actual distance in miles would be:

Actual Distance = 20 units * 25 miles/unit

= 500 miles

So, the actual distance between plane A and plane B is 500 miles.

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On their farm, Adam’s family maintains a storage that can hold 16. 8 cubic yards (yd3) of grain. Use the fact that 1 yard is approximately equal to 0. 9144 m to convert this volume to m3

Answers

the volume of grain that the storage can hold is approximately 12.87 cubic meters

Given that 1 yard is approximately equal to 0.9144 m.

Therefore, 16.8 cubic yards of grain can be converted to cubic meters by multiplying it by the conversion factor as shown below:

We know that ,  1 yard is approximately equal to 0. 9144 m to convert this volume to m3

16.8 cubic yards of grain = 16.8 x 0.9144 x 0.9144 x 0.9144

cubic meters of grain= approximately 12.87 cubic meters of grain

Therefore, the volume of grain that the storage can hold is approximately 12.87 cubic meters.

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here is the five number summary for salaries of u.s. marketing managers. what is the iqr? min 46360 q1 69699 median 77020 q3 91750 max 129420

Answers

Thus, the interquartile range (IQR) for the salaries of U.S. marketing managers is 22,051. This means that the middle 50% of salaries for marketing managers in the U.S. lie within a range of $22,051, between $69,699 and $91,750.

The interquartile range (IQR) is a measure of variability that indicates the spread of the middle 50% of a dataset. To calculate the IQR, we need to subtract the first quartile (Q1) from the third quartile (Q3).

The five number summary you provided includes the minimum (min), first quartile (Q1), median, third quartile (Q3), and maximum (max) salaries of U.S. marketing managers.

To find the interquartile range (IQR), we need to focus on the values for Q1 and Q3.

The IQR is a measure of statistical dispersion, which represents the difference between the first quartile (Q1) and the third quartile (Q3). In simpler terms, it tells us the range within which the middle 50% of the data lies.

Using the values you provided:
Q1 = 69,699
Q3 = 91,750

To calculate the IQR, subtract Q1 from Q3:
IQR = Q3 - Q1
IQR = 91,750 - 69,699
IQR = 22,051

So, the interquartile range (IQR) for the salaries of U.S. marketing managers is 22,051. This means that the middle 50% of salaries for marketing managers in the U.S. lie within a range of $22,051, between $69,699 and $91,750.

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The area of a trapezoid can be found using the expression
1/2h(b1+b2)
where h is the height and b1 and b2 are the lengths of the bases
a trapezoid has a height of 12 units and bases or (2x+3) and (3x+1).
which expression represents the area of the trapezoid?

answer options:
5x+4
6x+3
30x+42
60x+48

Answers

The area of the trapezoid is 30x + 42. Option C

How to determine the expression

The formula for calculating the area of a trapezoid is expressed as;

A = 1/2h(b1+b2)

Such that the parameters are enumerated as;

A is the areab1 and b2 are the bases of the trapezoidh is the height of the trapezoid

Now, substitute the values, we get;

Area = 1/2 × 12(2x + 3 + 3x + 4)

collect the like terms, we have;

Area = 6(5x + 7)

Expand the bracket, we get;

Area = 30x + 42

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the velocity of an object is ()=18 m/s.v(t)=18t m/s. use the given equation and geometry to find the distance traveled over the time intervals [0,2][0,2] and [2,5].

Answers

Over the time interval [2,5], the object traveled a distance of 450 meters.

To find the distance traveled over the time interval [0,2], we can use the formula for distance traveled, which is given by:

distance = velocity x time

Since the velocity is given by v(t) = 18t m/s, we can substitute t = 2 seconds to find the velocity at time t=2:
v(2) = 18(2) = 36 m/s

Now we can use this velocity and the time interval [0,2] to find the distance traveled:
distance = velocity x time
distance = 18t x t = 18t²

For t = 2 seconds, the distance traveled is:
distance = 18(2)² = 72 meters

Therefore, over the time interval [0,2], the object traveled a distance of 72 meters.

To find the distance traveled over the time interval [2,5], we can use the same formula, but this time we need to find the velocity at t=5 seconds:
v(5) = 18(5) = 90 m/s

Now we can use this velocity and the time interval [2,5] to find the distance traveled:
distance = velocity x time
distance = 18t x t = 18t²

For t = 5 seconds, the distance traveled is:
distance = 18(5)² = 450 meters

Therefore, over the time interval [2,5], the object traveled a distance of 450 meters.

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Here, we prove a deep result in number theory known as Fermat’s Little Theorem. However, our proof will require very little knowledge of number theory! Instead, we construct a combinatorial proof.
(a) Suppose there are beads available in a different colors for some integer a > 1, and let p be a prime number. How many different length p sequences of beads can be strung together?
(b) How many of them contain beads of at least two different colors? (Hint: Calculate how many beads contain exactly 1 color, and subtract from the first answer.)
(c) Each string of p beads with at least two colors can be made into a bracelet by winding t around a circle in a clockwise manner and tying the two ends of the string together. Two bracelets are the same if one can be rotated to form the other. "Flipping" bracelets or reflecting them is not allowed. Argue that for every bracelet, there are exactly p distinct strings of beads that yield it. (Here, you have to use the fact that p is a prime number.)
(d) Use the above result, combined with the Division Rule, to argue Fermat’s Little Theorem, which states a p − a is a multiple of p for any integer a > 1 and prime number p

Answers

Different length p sequences of beads can be strung together are [tex]a^{p}[/tex].

Sequences of beads which contain at least two different colors is [tex]a^{p}[/tex] - a.

Rotating S clockwise t times implies different string of beads for each t.

Using Fermat's Little Theorem we have  [tex]a^{p}[/tex] - a is a multiple of p,

For each of the p positions, there are a choices for which color to use.

Therefore, the total number of different length p sequences of beads is [tex]a^{p}[/tex]

The number of sequences of beads that use only one color is a.

Since there are a choices for which color to use, and every bead must be of that color.

Therefore, the number of sequences of beads that contain at least two colors is [tex]a^{p}[/tex] - a.

Let S be a string of p beads with at least two colors, and let t be a positive integer less than p.

Show that rotating S clockwise t times yields a different string of beads for each value of t.

Suppose, for the sake of contradiction,

That rotating S clockwise t times yields the same string of beads as rotating it clockwise s times, where 0 ≤ t < s < p.

Then the first s-t beads are the same in both rotations.

But since p is prime, s-t has a multiplicative inverse modulo p, say r.

Then if we rotate S clockwise r times, the first r(s-t) beads are the same as the first r(s-t) beads when rotating S clockwise 0 times.

Which means they are all the same color.

This contradicts the assumption that S has at least two colors.

Therefore, rotating S clockwise t times yields a different string of beads for each value of t.

Let a be an integer greater than 1, and let p be a prime number. We want to show that [tex]a^{p}[/tex] - a is a multiple of p.

Consider the set of all bracelets made from p beads.

Each of which is either colored a or not colored a.

By part (b), the number of such bracelets is [tex]a^{p}[/tex] - a.

By part (c), each bracelet corresponds to exactly p distinct strings of beads.

Therefore, the total number of distinct strings of beads is [tex]a^{p-1}[/tex] - 1.

By the Division Rule, [tex]a^{p-1}[/tex]- 1 is a multiple of p if and only if [tex]a^{p}[/tex] - a is a multiple of p.

Therefore, we have shown that [tex]a^{p}[/tex] - a is a multiple of p, which is Fermat's Little Theorem.

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determine the area of the region bounded by f(x) = 11x − 19 and g(x) = 3x − 8 on the interval [2,5]

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The area of the region bounded by f(x) = 11x − 19 and g(x) = 3x − 8 on the interval [2,5] is 24.

To determine the area of the region bounded by f(x) = 11x − 19 and g(x) = 3x − 8 on the interval [2,5], we need to find the points where the two functions intersect. Setting 11x − 19 = 3x − 8, we get x = 11/4. Since 11/4 is between 2 and 5, this means the two functions intersect within the interval [2,5].

To find the area between the two functions, we need to integrate the difference between f(x) and g(x) over the interval [2,5]. Thus, the area is given by:

∫2^5 [11x − 19 − (3x − 8)] dx

Simplifying this expression, we get:

∫2^5 8x − 11 dx

Integrating, we get:

[4x^2 − 11x]2^5 = 24

Therefore, the area of the region bounded by f(x) = 11x − 19 and g(x) = 3x − 8 on the interval [2,5] is 24.

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Express tan G as a fraction in simplest terms.


G


24


H


2

Answers

The value of tan(G/24) can be expressed as a fraction in simplest terms, but without knowing the specific value of G, we cannot determine the exact fraction.

To express tan(G/24) as a fraction in simplest terms, we need to know the specific value of G. Without this information, we cannot provide an exact fraction.

However, we can explain the general process of simplifying the fraction. Tan is the ratio of the opposite side to the adjacent side in a right triangle. If we have the values of the sides in the triangle formed by G/24, we can simplify the fraction.

For example, if G/24 represents an angle in a right triangle where the opposite side is 'O' and the adjacent side is 'A', we can simplify the fraction tan(G/24) = O/A by reducing the fraction O/A to its simplest form.

To simplify a fraction, we find the greatest common divisor (GCD) of the numerator and denominator and divide both by it. This process reduces the fraction to its simplest terms.

However, without knowing the specific value of G or having additional information, we cannot determine the exact fraction in simplest terms for tan(G/24).

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y = |x-3| +|x+2|-|x-5| if-2
What is y

Answers

y = |x-3| +|x+2|-|x-5| if-2

A painter charges $15.10 per hour, plus an additional amount for the supplies. If he made $155.86 on a job where he worked 5 hours, how much did the supplies cost?

Answers

Let x be the amount charged for supplies.

The total amount charged is equal to the sum of the amount charged per hour and the amount charged for supplies.

Mathematically, this can be written as;

15.10(5) + x = 155.86

Therefore,

15.10(5) + x = 155.86

Performing the calculation;

15.10(5) + x = 155.86

1.50(5) + 0.10(5) + x = 155.86

27.50 + x = 155.86

Solving for x,

x = 155.86 - 27.50

x = $128.36

Therefore, the cost of supplies is $128.36.

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what is the indentation diagonal length when a load of 0.700 kg produces a vickers hv of 650

Answers

the indentation diagonal length is approximately 0.0686 units.

What is Intention Diagonal Length?

The indentation diagonal d is determined by the mean value of the two diagonals d 1 and d 2 at right angles to each other: To avoid the risk of bulging of the material on the opposite side of the sample, the thickness should not fall below a certain minimum value. value. The minimum thickness depends on the expected hardness of the material and the test load.

To calculate the indentation diagonal length using the Vickers hardness value, you need to know the applied load and the hardness number. The Vickers hardness test measures the resistance of a material to indentation using a diamond indenter.

In this case, you have the following information:

Load: 0.700 kg

Vickers HV: 650

The Vickers hardness number (HV) is defined as the applied load divided by the surface area of the indentation.

The formula to calculate the indentation diagonal length (d) is:

d = 1.854 * sqrt(L / HV)

Where:

d = indentation diagonal length

L = applied load in kg

HV = Vickers hardness number

Plugging in the values:

d = 1.854 * sqrt(0.700 / 650)

Calculating the square root and performing the division:

d ≈ 1.854 * 0.0370262

d ≈ 0.0686

Therefore, the indentation diagonal length is approximately 0.0686 units. Please note that the specific unit (e.g., millimeters) was not provided in the question, so the answer is given in relative units.

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In any production process in which one or more workers are engaged in a variety of tasks, the total time spent in production varies as a function of the size of the workpool and the level of output of the various activities. In a large metropolitan department store, it is believed that the number of man-hours worked (y) per day by the clerical staff depends on the number of pieces of mail processed per day (x1) and the number of checks cashed per day (x2). Data collected for n = 20 working days were used to fit the model:
E(y) = Bo + B1x1+ B2x2
A partial printout for the analysis follows: Predicted
OBS x1 x2 Actual value predicted value Residual lower 95%CL Upper 95% CL
1 7781 644 74.707 83.175 -8.468 47.224 119.126
Interpret the 95% prediction interval for y shown on the printout.
A)We are 95% confident that the number of man-hours worked per day falls between 47.224 and 119.12.
B)We are 95% confident that the mean number of man-hours worked per day falls between 47.224 and 119.126 for all days in which 7,781 pieces of mail are processed and 644 checks are cashed
C)We expect to predict number of man-hours worked per day to within an amount between 47.224 and 119.126 of the true value.
D)We are 95% confident that between 47.224 and 119.126 man-hours will be worked during a single day in which 7,781 pieces of mail are processed and 644 checks are cashed.

Answers

The correct interpretation of the 95% prediction interval for y shown on the printout is:

D) We are 95% confident that between 47.224 and 119.126 man-hours will be worked during a single day in which 7,781 pieces of mail are processed and 644 checks are cashed.

This interpretation is based on the fact that a prediction interval gives a range of values in which we expect to find the response variable (in this case, the number of man-hours worked) for a specific set of predictor variable values (in this case, 7,781 pieces of mail processed and 644 checks cashed) with a certain level of confidence (in this case, 95%).

So, we can be 95% confident that the actual number of man-hours worked during a single day with these specific values of x1 and x2 falls between the lower and upper limits of the prediction interval, which are given as 47.224 and 119.126, respectively, in the printout.

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What is the perimeter of a rectangle that measures 7 3/4 inches by 10 1/8 inches?

Answers

Answer:

35.75 (inches)

Step-by-step explanation:

7 3/4 is the width and 10 1/8 is the length.

perimeter = 2L + 2W

= 2 (10 1/8) + 2(7 3/4)

= 20 2/8  +  14 6/4

= 20.25 + (14 + 1 + 2/4)

= 20.25 + (15 + 1/2)

= 20.25 + 15 + 0.5

= 35.75 (inches)

Joe paid a total of $56 for 7 frozen meals. he had a coupon for $2 off the regular price of each meal. each meal had the same regular price. what was the regular price of each meal?

Answers

The regular price of each frozen meal was $10.

Joe paid a total of $56 for 7 frozen meals. he had a coupon for $2 off the regular price of each meal. each meal had the same regular price. Let x be the regular price of each meal. There are 7 frozen meals, and Joe had a coupon for $2 off the regular price of each meal. Therefore, Joe paid 7 * (x - 2) = $56 Combining like terms:7 * x - 14 = 56Add 14 to each side7 * x = 70.Divide each side by 7x = 10

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Find an equation of the plane passing through the points P=(3,2,2),Q=(2,2,5), and R=(−5,2,2). (Express numbers in exact form. Use symbolic notation and fractions where needed. Give the equation in scalar form in terms of x,y, and z.

Answers

The equation of the plane passing through the given points is 3x+3z=3.

To find the equation of the plane passing through three non-collinear points, we first need to find two vectors lying on the plane. Let's take two vectors PQ and PR, which are given by:

PQ = Q - P = (2-3, 2-2, 5-2) = (-1, 0, 3)

PR = R - P = (-5-3, 2-2, 2-2) = (-8, 0, 0)

Next, we take the cross product of these vectors to get the normal vector to the plane:

N = PQ x PR = (0, 24, 0)

Now we can use the point-normal form of the equation of a plane, which is given by:

N · (r - P) = 0

where N is the normal vector to the plane, r is a point on the plane, and P is any known point on the plane. Plugging in the values, we get:

(0, 24, 0) · (x-3, y-2, z-2) = 0

Simplifying this, we get:

24y - 72 = 0

y - 3 = 0

Thus, the equation of the plane in scalar form is:

3x + 3z = 3

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Mary Beth's rectangle measures 4 1/4 units by 4 1/4 units. What is it's area?

Answers

The area of Mary Beth's rectangle is 289/16 square units.

To find the area of Mary Beth's rectangle, we need to multiply its length by its width. In this case, the length and width are both 4 1/4 units.

To calculate the area, we first need to convert 4 1/4 into an improper fraction. To do that, we multiply the whole number (4) by the denominator (4), and then add the numerator (1). This gives us a total of 17/4.

Now, to find the area, we multiply the length (17/4) by the width (17/4):

(17/4) * (17/4)

= (17 * 17) / (4 * 4)

= 289/16

Therefore, the area of Mary Beth's rectangle is 289/16 square units.

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Nina purchased a lawn chair. She gave the cashier $9.85 and received $0.71 in change. How much did the lawn chair cost?

Answers

Therefore, the lawn chair cost $9.14.

Nina gave the cashier $9.85 and received $0.71 in change after buying a lawn chair.

To find out the cost of the lawn chair, we can subtract the change she received from the total amount she paid.

$9.85 - 0.71 = 9.14$

When you are shopping, the cashier is the person responsible for handling your payments. The cashier receives the payment and gives you change if you have overpaid. In this particular problem, Nina gave the cashier $9.85 to pay for the lawn chair she was buying. The cost of the lawn chair is the difference between the amount Nina gave to the cashier and the amount of change she received. Therefore, we can say that the lawn chair cost $9.14 because that is the difference between the amount she paid and the change she received.

In general, cashiers play a crucial role in the sales process. They provide an important service by handling payments, ensuring that customers pay the right amount for what they are buying, and by providing change when necessary. Without cashiers, customers would need to handle payments themselves, which would be inconvenient and could lead to errors.

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let f (x) = tan sin−1 x 5 9 . the domain of f is

Answers

The domain of f(x) = tan(sin⁻¹(x)⁵/⁹) is [-1,1].

The function sin⁻¹(x) is also known as the inverse sine function or arcsin(x). This function takes an input value x and returns the angle whose sine is x. The range of arcsin(x) is [-π/2, π/2], which means that the input x must be between -1 and 1 in order to have a real output.

Next, we have (sin⁻¹(x))⁵/⁹, which means we are taking the fifth root of the arcsin function. This will give us another function that has a domain of [-1,1] because we can only take the nth root of a non-negative number.

Finally, we have the tangent function applied to (sin⁻¹(x))⁵/⁹. The tangent function is defined for all real numbers except for values where the cosine is equal to zero, which happens at odd multiples of π/2. However, because we are taking the fifth root of the arcsin function, we are only considering values of x that are between -1 and 1.

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∬ s 6 yds ∬s6x yds where s s is the portion of the plane x y z = 1 x y z=1 that lies in the 1st octant

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The double integral of 6 over the region in the first octant of the plane x + y + z = 1 is [missing].

To find the double integral, we need to determine the limits of integration. Since we are in the first octant, we have x ≥ 0, y ≥ 0, and z ≥ 0. We can rewrite the equation of the plane as z = 1 - x - y. The region of integration is bounded by the coordinate planes and the plane x + y + z = 1.

The limits for x and y are both from 0 to 1, and the limits for z are from 0 to 1 - x - y. Integrating the function 6 over this region will give us the desired result.

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determine the values of the parameter s for which the system has a unique solution, and describe the solution. 7. 6sxı + 4x2 = 5 9x₂ + 25x2 = -2 8. 35xi 5x2 = 3 9x1 + 5sx2 = 2 * = 1 9. saj - 25x2 = -1 311+65x = 4 10. 25xi + 3sxi + 65X) = 2

Answers

System 7: The system has a unique solution for any value of s.

System 8: The system has a unique solution for any value of s.

System 9: The system has a unique solution for all values of s except for s=5. , System 10: The system has a unique solution for any value of s.

The system has a unique solution for any value of s because the first equation is linear in x1 and the second equation is linear in x2.

The system has a unique solution for any value of s because both equations are linear and there are no dependencies or inconsistencies.

The system has a unique solution if s is not equal to 5. For s = 5, the system becomes inconsistent and has no solution.

The system has a unique solution for any value of s because all equations are linear and there are no dependencies or inconsistencies.

for systems 7, 8, and 10, a unique solution exists for all values of s. For system 9, a unique solution exists for all values of s except for s = 5, where the system becomes inconsistent. The specific solutions for each system can be found by solving the simultaneous equations using methods such as substitution or matrix operations.

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[group theory] Prove that if R is a PID, then any two nonzero elements of R have a greatest common divisor.
I know that every PID is a UFD, so I feel like some kind of constructive proof might work. If I were to consider a,b in R, then a and b both have unique prime decompositions. But I'm unsure of where to go from here.

Answers

D is a common divisor of a and b, and any common divisor of a and b must divide d. Thus, d is a greatest common divisor of a and b, as required.

To prove that any two nonzero elements of a PID R have a greatest common divisor, let a and b be nonzero elements of R.

First, we note that since R is a PID, it is a UFD (unique factorization domain), and so both a and b have unique factorizations into irreducible elements (i.e., primes) up to units and order.

We define the ideal (a, b) generated by a and b as the set of all elements of the form ra + sb, where r and s are arbitrary elements of R. Since R is a PID, (a, b) is a principal ideal, i.e., (a, b) = (d) for some element d in R.

Now, we claim that d is a greatest common divisor of a and b. To see this, note that d divides both a and b, since a and b are both elements of (d). In other words, there exist elements x and y in R such that a = dx and b = dy. Moreover, any common divisor of a and b must also divide d, since if c divides both a and b, then c also divides any element of the form ra + sb in (a, b), and hence c divides d.

Therefore, d is a common divisor of a and b, and any common divisor of a and b must divide d. Thus, d is a greatest common divisor of a and b, as required.

Therefore, we have shown that any two nonzero elements of a PID R have a greatest common divisor.

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Let R be a principal ideal domain (PID), and let a, b be nonzero elements of R. We need to show that a greatest common divisor (gcd) of a and b exists in R.

Let I be the ideal of R generated by a and b. Since R is a PID, I is a principal ideal, say I = (d) for some element d of R. We claim that d is a gcd of a and b.

First, we show that d is a common divisor of a and b. Since a and b are both in I, they are both multiples of d. Specifically, a = md and b = nd for some elements m, n of R. Therefore, d divides both a and b, and so d is a common divisor of a and b.

Next, we show that d is a greatest common divisor of a and b. Suppose c is another common divisor of a and b. Then c is also a multiple of d, since d generates the ideal (d) containing a and b. Specifically, c = kd for some element k of R. We need to show that d divides c, which would imply that d is a common divisor of a and b that is greater than or equal to c.

Since c is a common divisor of a and b, we have a = xc and b = yc for some elements x, y of R. Substituting c = kd, we obtain a = xkd and b = ykd. Since d is a generator of the ideal (d), it follows that d divides xk and yk. Since R is a domain (meaning that it has no zero divisors), it follows that d divides x and y individually. Therefore, a = xd' and b = yd' for some element d' of R, where d' = xd/gcd(x,y) = yd/gcd(x,y) is another common divisor of a and b. Since gcd(x,y) is a divisor of both x and y, it follows that gcd(x,y) divides d', and therefore d divides d'. This completes the proof that d is a greatest common divisor of a and b.

Therefore, we have shown that any two nonzero elements of R have a greatest common divisor.

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verify { ¯ u 1 , ¯ u 2 } forms an orthogonal set and find the orthogonal projection of ¯ v onto w = s p a n { ¯ u 1 , ¯ u 2 } .

Answers

To verify that { ¯ u1, ¯ u2 } forms an orthogonal set, we need to show that their dot product is zero. Let ¯ u1 =  and ¯ u2 = . Then, their dot product is:
¯ u1 · ¯ u2 = a1a2 + b1b2 + c1c2

If this dot product is zero, then the vectors are orthogonal. So, we need to solve the equation:
a1a2 + b1b2 + c1c2 = 0
If this equation is true for our given vectors ¯ u1 and ¯ u2, then they form an orthogonal set.
To find the orthogonal projection of ¯ v onto w = span{ ¯ u1, ¯ u2}, we can use the formula:
projw ¯ v = ((¯ v · ¯ u1) / (¯ u1 · ¯ u1)) ¯ u1 + ((¯ v · ¯ u2) / (¯ u2 · ¯ u2)) ¯ u2
where · represents the dot product.
So, we first need to find the dot products of ¯ v with ¯ u1 and ¯ u2, as well as the dot products of ¯ u1 and ¯ u2 with themselves:
¯ v · ¯ u1 = av a1 + bv b1 + cv c1
¯ v · ¯ u2 = av a2 + bv b2 + cv c2
¯ u1 · ¯ u1 = a1 a1 + b1 b1 + c1 c1
¯ u2 · ¯ u2 = a2 a2 + b2 b2 + c2 c2
Then, we plug these values into the formula to get the projection:
projw ¯ v = ((av a1 + bv b1 + cv c1) / (a1 a1 + b1 b1 + c1 c1)) ¯ u1 + ((av a2 + bv b2 + cv c2) / (a2 a2 + b2 b2 + c2 c2)) ¯ u2
This is the orthogonal projection of ¯ v onto w.

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Let S be the triangular region with vertices (0, 0), (1, 1), (0, 1). Find the image of S under the transformation x = u^2, y = v.

Answers

(0, 0), (1, 1), (0, 1) and (0, 0), (-1, 1), (0, 1).

Let S be the triangular region with vertices (0, 0), (1, 1), (0, 1). To find the image of S under the transformation [tex]x = u^2, y = v[/tex], we need to apply the transformation to each vertex.

Vertex (0, 0):
[tex]u^2 = 0 => u = 0[/tex]
v = 0 => v = 0
Transformed vertex: (0, 0)

Vertex (1, 1):
[tex]u^2 = 1 => u = ±1[/tex]
v = 1 => v = 1
Transformed vertices: (1, 1) and (-1, 1)

Vertex (0, 1):
[tex]u^2 = 0[/tex] => u = 0
v = 1 => v = 1
Transformed vertex: (0, 1)

Thus, the image of triangular region S under the transformation x = u^2, y = v consists of two triangles with vertices (0, 0), (1, 1), (0, 1) and (0, 0), (-1, 1), (0, 1).

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find the y intercept of the line fraction numerator 6 y plus 2 x over denominator 5 end fraction equals 18

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The y intercept of the line fraction numerator 6y + 2x over denominator 5 equals 18 is (0,18), where the x-coordinate is 0 and the y-coordinate is 18.


To find the y-intercept, we need to plug in x = 0 into the equation of the line. When we do this, we get:

fraction numerator 6y + 2(0) over denominator 5 end fraction = 18

Simplifying this, we get:

6y/5 = 18

Multiplying both sides by 5/6, we get:

y = 15

So the y-intercept is the point (0,15). However, the problem is asking for the line in fraction form, so we need to express this as a fraction. The equation of the line can be written as:

fraction numerator 6y + 2x over denominator 5 end fraction = fraction numerator 6(15) + 2(0) over denominator 5 end fraction = 18

So the y-intercept of the line fraction numerator 6y + 2x over denominator 5 equals 18 is (0,18).

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1. For the upcoming semester, Ashley is planning to take three courses (math, English, and
physics. According to time blocks and highly recommended professors, there are 8
sections of math, 5 of English, and 4 of physics that she finds suitable. Assuming no
scheduling conflicts, how many different three-course schedules are possible?
[DOK2/SMP]
a. 120
b. 180
c. 160
d. 40

Answers

There are 160 different three-course schedules possible for Ashley.

The correct option is c.

To determine the number of different three-course schedules possible for Ashley, we need to multiply the number of options for each course together.

Ashley has 8 options for the math course, 5 options for the English course, and 4 options for the physics course.

The total number of different schedules is calculated as:

8 (options for math) x 5 (options for English) x 4 (options for physics) = 160

Therefore, the correct answer is c. 160.

There are 160 different three-course schedules possible for Ashley, assuming no scheduling conflicts and based on the given number of suitable sections for each course.

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A tank formed by rotating y = 4x 2 , 0 ≤ x ≤ 1 about the y-axis is full of water. The density of the water is given by rho = 62.5 lb/ft3 . Find the work required to pump all the water to a level 1 foot above the top of the tank.

Answers

The work required to pump all the water to a level 1 foot above the top of the tank is 261.8 ft-lb.

The tank formed by rotating y = 4x2, 0 ≤ x ≤ 1 about the y-axis is full of water.

The density of the water is given by rho = 62.5 lb/ft3.

To calculate the work required to pump all the water to a level 1 foot above the top of the tank, we will first need to find the volume of the tank and then use it to calculate the weight of the water.

V = ∫2π [∫04x2dy]dx

The inner integral will be integrated with respect to y from 0 to 4x2, whereas the outer integral will be integrated with respect to x from 0 to 1.∫04x2dy = y|04x2= 4x2Therefore, the volume of the tank is

V = ∫2π [∫04x2dy]dx= ∫21[∫04x264π]dx= 1/3π (4) (1) 3= 4/3 π cubic feet

Now, we will use the density of water to find the weight of the water in the tank.

ρ = 62.5 lb/ft3

Weight of water = volume of water × density of water

= (4/3)π × 62.5

= 261.8 lb

The work required to pump all the water to a level 1 foot above the top of the tank will be the product of the weight of the water and the distance it is being raised.

W = F × d

= 261.8 lb × 1 ft

= 261.8 ft-lb

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eight less than the product of twelve and four

Answers

Answer:

-40

Step-by-step explanation:

8-(12*4)

you would multiply what is in the parenthesis first and then you would subtract! :D

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