The lateral and total surface areas of the given cone are 753.98 cm² and 1206.31 cm² respectively.
What are the formulae for lateral and total surface areas of a cone?A cone has a height 'h', radius 'r', and slant height 'l'.
The slant height of the cone is obtained by the Pythagorean theorem. I.e.,
l² = h² + r²
Then,
Its lateral surface area(LSA) = πr([tex]\sqrt{h^2+r^2}[/tex]) square units and
Its total surface area(TSA) = πr(r + l) square units
Calculation:It is given that,
A cone has a height h = 16 cm and radius r = 12 cm
Then, the slant height is calculated by
l² = h² + r²
l = [tex]\sqrt{h^2+r^2}[/tex]
On substituting,
l = [tex]\sqrt{16^2+12^2}[/tex]
= [tex]\sqrt{400}[/tex]
= 20 cm
So,
LSA = πr([tex]\sqrt{h^2+r^2}[/tex])
= π × 12 × ([tex]\sqrt{16^2+12^2}[/tex])
= π × 12 × 20
= 753.98 cm²
and
TSA = πr(r + l)
= π × 12 × (12 + 20)
= π × 12 × 32
= 1206.37 cm²
Therefore, the lateral and total surface areas of the cone with a height of 16 cm and a radius of 12 cm are 753.98 cm² and 1206.37 cm².
Learn more about a right cone and its surface areas here:
https://brainly.com/question/23340582
#SPJ4
Answer: The lateral area is 240π square centimeters. The total surface area is 384π square centimeters.
Step-by-step explanation:
Evaluate the expression: 5 + 3 × (5 - 2) 2
32
72
36
16
how much does the job pay in a 8hour day if they have 5 employees working $25 a hr
Answer:
1000$
Step-by-step explanation:
1000$
Original function: F= 9/5C+32
Inverse function: C=F−32·5/9
Suppose we want to find the temperature in Celsius when it is 10 degrees Fahrenheit and when it is 90 degrees Fahrenheit. Which equation would you use? Why?
The inverse function is used to find the temperature in Celsius,
the temperature in celsius is -12.22°C and 32.22°C.
What is an expression?Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation. An expression's structure is as follows:
Expression: (Math Operator, Number/Variable, Math Operator).
Given expression for temperature calculation
Original function: F = 9/5C + 32
Inverse function: C = (F − 32)5/9
where C is temp. in Celsius and F is temp. in Fahrenheit,
so when the temperature is given in Fahrenheit we have to use the inverse function formula to calculate the temperature in degree celsius,
because it will be easy to calculate.
temperature = 10°F
C = (F − 32)5/9
C = (10 - 32)5/9
C = -22 x 5/9
C = -12.22°C
when temperature = 90°F
C = (90 - 32)5/9
C = 32.22°C
Hence the temperature is -12.22°C and 32.22°C.
Learn more about expression;
brainly.com/question/14083225
#SPJ1
What is the degree of the polynomial 2x2?
In this case, the highest power on any variable is 2. As a result, the degree of polynomial is 2.
What is degree of the polynomial?The degree of a polynomial in mathematics is the highest of the degrees of the polynomial's monomials with non-zero coefficients. A term's degree is the sum of the exponents of the variables in it, and it is thus a non-negative integer. The degree of a polynomial is the greatest or maximum power of a variable in a polynomial equation. A degree represents the polynomial with the greatest exponential power. Finding the degree of a polynomial. 2 x 2 + 2 x - 364 = 0. The maximum degree of the polynomial in the preceding equation.
Here,
Given : 2x^2
Degree of polynomial = Highest power of a variable.
Here, 2 is the highest power on any variable. So, degree of polynomial is 2.
To know degree of the polynomial,
https://brainly.com/question/29182596
#SPJ4
Marsha and Kristen are scuba diving. Marsha is at an elevation of -24 feet, and she is descending at a rate of 12 feet per minute. Kristen is at an elevation of -8 feet and she is descending at a rate of 16 feet each minute. The variable t represents the time in minutes.After how many minutes will Marsha and Kristen be at the same elevation? At what elevation will they be at that time?
Marsha and Kristen will be at the same elevation of -72 feet after 4 minutes.
How to find their elevation?
To find out after how many minutes Marsha and Kristen will be at the same elevation, we can set their elevation equations equal to each other:
-24 - 12t = -8 - 16t
Then, we can solve for t by adding 8 to both sides and dividing by 4:
t = 4
So, Marsha and Kristen will be at the same elevation after 4 minutes.
To find out what elevation they will be at that time, we can substitute 4 into either one of the elevation equations and solve for the elevation:
-24 - 12(4) = -24 - 48 = -72
So, Marsha and Kristen will be at the same elevation of -72 feet after 4 minutes.
Read more about elevation here:
https://brainly.com/question/88158
#SPJ1
Which graph could be the graph of f(x)
The graph which could be the graph of the polynomial f( x) with roots-8,-5, 1, and 2 is Graph 4.
What is Polynomial function?
A polynomial function is a function that involves onlynon-negative integer powers or only positive integer expounders of a variable in an equation like the quadratic equation, boxy equation, etc. For illustration, 2x 5 is a polynomial that has exponent equal to 1.
Given that;
Root of polynomial = 4.
This means that the polynomial f( x) has 4 roots.
Now, when f( x) = 0, we're told that the 4 roots are;
x = -8
x = -5
x = 1
x = 2
Now, the roots of a polynomial on a graph are the points where the graph wind crosses the x- axis which are called the x-intercepts. Looking at all the given graphs, the only bone that crosses the x-axis at the points x = -8, x = -5, x = 1 and x = 2 is the last graph which is Graph 4. In conclusion, the graph of the polynomial f( x) with roots-8,-5, 1, and 2 is Graph 4.
Learn more about polynomial function click here:
https://brainly.com/question/7693326
#SPJ1
How do you find the area of a triangle with 3 vectors?
The area of the triangle is equal to: Area = (|A| x |B| x sin(θ))/2
To calculate the area of a triangle with 3 vectors, we will use the vector triple product formula. This formula states that the area of the triangle is equal to the magnitude of the cross product of two of the vectors divided by two.
Let's say we have three vectors A, B, and C. The area of the triangle is then equal to the magnitude of the cross product of vector A and B, divided by two.
The magnitude of the cross product of A and B can be calculated as follows:
Magnitude of (A x B) = |A| x |B| x sin(θ)
Where |A| and |B| are the magnitudes of vectors A and B, and θ is the angle between them.
Therefore, the area of the triangle is equal to:
Area = (|A| x |B| x sin(θ))/2
Learn more about area of the triangle here:
https://brainly.com/question/19305981
#SPJ4
How do you draw a perpendicular line in Class 7?
A perpendicular line is one that is perpendicular or 90 degrees to another line. In order to draw a perpendicular line in Class 7, it is important to understand the formula and calculation associated with it.
The formula associated with perpendicular lines is that the product of the slope of the two lines must be equal to -1. This means that if one line has a slope of m1, then the slope of the perpendicular line must be -1/m1.
In order to calculate the slope of a line, we must use the formula m = (y2-y1)/(x2-x1), where m is the slope, (x1,y1) is the first point, and (x2,y2) is the second point. With this information, we can use the formula to calculate the slope of the line we want to draw a perpendicular line to, and then use the formula m = -1/m1 to calculate the slope of the perpendicular line.
Finally, with the slope of the perpendicular line, we can use the point-slope form of the equation of a line, y-y1=m(x-x1), to plot the equation of the line and draw it on the graph. This formula can be used to draw a perpendicular line in Class 7.
Learn more about perpendicular line here:
https://brainly.com/question/18271653
#SPJ4
How do I write eight more than three times the sum of a number and one in simplified form 
Therefore , the solution to the given problem of equation comes out to be4x-3y = 6 as a standard equation in all the above options.
An equation's definitionAn equation is a representation of two identical variables in mathematics, one on either side of an equals sign. Common difficulties can be solved using equations. We frequently seek pre algebra help when faced with obstacles in real life. Lessons in pre-algebra cover the basics of mathematics.
Here,
Given : 4x-3y = 6
-4x + 2y =8
=> y = 4/5x + 4
=> 4/5x + 2y = 6
Thus ,
From the above following equations we get ,
4x-3y = 6
as a standard equation in all the above options.
Therefore , the solution to the given problem of equation comes out to be 4x-3y = 6 as a standard equation in all the above options.
To know more about equation visit:
brainly.com/question/649785
#SPJ1
On solving the provided question, we can say that the equation that cab be formed the data is as 8 > 3x => x>2.6666666667
What is equation?A mathematical equation is a formula that joins two statements and uses the equal symbol (=) to indicate equality. A mathematical statement that establishes the equality of two mathematical expressions is known as an equation in algebra. For instance, in the equation 3x + 5 = 14, the equal sign places the variables 3x + 5 and 14 apart. The relationship between the two sentences on either side of a letter is described by a mathematical formula. Often, there is only one variable, which also serves as the symbol. for instance, 2x – 4 = 2.
the equation that cab be formed the data is as
eight more than three times the sum of a number
let the number be x.
8 > 3x
x> 8/3
x>2.6666666667
To know more about equation visit:
https://brainly.com/question/649785
#SPJ1
A group of friend went to lunch. The bill before ale tax and tip wa $37. 50. A ale tax of 8% wa added. The group then tipped 18% on the amount after the ale tax wa added. What wa the amount, in dollar, of the ale tax?
What wa the total amount the group paid, including tax and tip?
As per the given tax percentage, the sales tax is $3 and the total amount paid by the group including the tip is $47.25
Here we have given that the bill before sale tax and tip is $37.50.
Here we have know that there was a tax of 8%.
And the there was a tip of 18%.
As we all know that the tip is after the tax, then it's not going to affect it, and we can essentially ignore it.
Therefore here the real question here is just what is 8% of $37.50.
Now, here we have to find the percent of something, then first you need to put the percent as a decimal.
Then we get the 8% in decimal form is 0.08 where as 18% as 0.18
Now, we have to multiply the percent in decimal form by the number.
Then we get,
=> 37.50 dollars × 0.08 = 3 dollars.
=> 37.50 dollars × 0.18 = 6.75 dollars.
And the total amount pair is calculated as,
=> 37.50 + 3 + 6.75
=> 47.25
To know more about Percentage here.
https://brainly.com/question/13729841
#SPJ4
Do the lengths 5 12 and 13 form a right triangle?
The lengths 5, 13 and 12 can form a right angled triangle as they follow Pythagoras theorem.
The lengths can form a right triangle if they follow Pythagoras theorem. The longest side will be hypotenuse which is 13. Remaining will be base and height.
Pythagoras theorem -
Perpendicular² = Base² + Height²
Keep the values in formula
13² = 12² + 5²
Taking square on each side of the equation
169 = 144 + 25
Performing addition on Right Hand Side of the equation
169 = 169
Thus, the righ triangle can be formed based on the mentioned dimensions.
Learn more about triangle -
https://brainly.com/question/28470545
#SPJ4
PLEASE!!!! I NEED HELP WITH MY HOMEWORK!!!!!!
(GEOMETRY)!!!
Answer:N= 10 fo sho m -14 maybe
Step-by-step explanation:
this triangle is an isosceles triangle because of the 90 45 45 angles. This means that the two side lengths are equal and 10 is equal to n. to calculate m is maybe square root of 2 times 10 because this image.
On a standardized test with a normal distribution, the mean
is 20 and the standard deviation is 2.6. In which interval
would the greatest number of scores occur?
Answer: The interval in which the greatest number of scores would occur is between (20 - 2.6) and (20 + 2.6), which is approximately 17.4 and 22.6 respectively. This interval is also known as the "bell curve" or the "normal distribution curve" and it is centered at the mean (20) and covers approximately 68% of all possible scores. Most of the data points would fall within one standard deviation of the mean, hence the greatest number of scores would occur in this interval.
Step-by-step explanation:
Triangle HIJ has ∠I = 17° and ∠H = 84°. Find m∠ J.
Calculate the area of the quadrilateral.
Select all the tranformation that apply to thi quadratic function:
y=1/3(x2)24
The transformations that apply are Horizontal stretch or compression by a factor of 3, Vertical shift up by 24 units, Reflection over the x-axis, The leading coefficient of 1/3 is a vertical compression and The exponent of 2 on x is a parabola.
Vertical Stretch/Compression by a factor of 3: The coefficient in front of the x^2 term is 1/3, which stretches or compresses the graph vertically by a factor of 3.
Horizontal Stretch/Compression by a factor of 24: The exponent on the x term is 24, which stretches or compresses the graph horizontally by a factor of 24.
Reflect over the x-axis: The coefficient in front of the x^2 term is positive, so the graph is reflected over the x-axis.
Shift up or down: The constant term is not present, so the graph does not shift up or down.
Shift left or right: The constant term is not present, so the graph does not shift left or right.
Rotation: The graph does not rotate as it is a parabola in the standard form y=ax^2 + bx + c, it does not have any trigonometric function in it.
Therefore, The transformations that apply are Horizontal stretch or compression by a factor of 3, Vertical shift up by 24 units, Reflection over the x-axis, The leading coefficient of 1/3 is a vertical compression and The exponent of 2 on x is a parabola.
To learn more about the transformation of equations,
Visit; brainly.com/question/29159889
#SPJ4
For the given equation, find the values of a, b, and c, determine the direction in which the parabola opens, and determine the y-intercept. Decide which table best illustrates these values for the equation: f (x) = negative 9 x squared + 7 x.
Examining the function -9x² + 7x the parabolic curve is opening downwards and the y intercept is 7/9 and 0
Where to look for the y interceptsThe sign of the x2 coefficient determines whether a parabolic curve opens upward or downward in this scenario.
In this function, the coefficient of x2 is a and is -9.
Rising downwards results from a negative coefficient, while opening upwards from a positive coefficient
The intercept of y
-9x² + 7x = 0
x(-9x + 7) = 0
x = 0
-9x + 7 = 0
-9x = -7
x = 7/9
Therfore, Examining the function -9x² + 7x , 0 and 7/9 is the y intercept.
Learn more on quadratic equation at:
brainly.com/question/25841119
#SPJ4
what are the excluded factors of 2/x+3
Answer:
x=3
Step-by-step explanation:
An equation's omitted factors are the values of x for which the result is unknown. This indicates that if the denominator or x(x-3) equals 0, your solution is undefined.
Set up this equation and solve for the potential possibilities of x to find these numbers: x(x-3)=0
Divide both sides by (x-3) to find one of the values:
x(x-3)/(x-3)=0(x-3)
Because (x-3) cancels on the left side of the equation and everything divided by 0 is zero on the right, you should get: x=0.
Now that you've determined one of the excluded values, work out the other:
To begin, split both sides by x:
x(x-3)=0
x-3=0
Finally, multiply both sides by -3 to get: x=3
. Which ordered pairs in the form (x, y) are solutions to the equation 7x – 5y = 28?
Choose all answers that are correct.
A. (−6, −14)
B. (−1, −7)
C. (4, 10)
D. (7, 9)
Answer:
A and B
Step-by-step explanation:
to determine which pairs are solutions , substitute the x and y coordinates into the left side of the equation and if equal to the right side then solution.
A (- 6, - 14 )
7(- 6) - 5(- 14) = - 42 + 70 = 28 ← true , so solution
B (- 1, - 7 )
7(- 1) - 5(- 7) = - 7 + 35 = 28 ← true , so solution
C (4, 10 )
7(4) - 5(10) = 28 - 50 = - 22 ≠ 28 , not a solution
D (7, 9 )
7(7) - 5(9) = 49 - 45 = 4 ≠ 28 , not a solution
What are 2 types of coordinate reference systems?
The two main types of coordinate systems used in mathematics and physics are Cartesian and Polar Coordinates.
What is coordinates system?A coordinate system is a system used to identify and locate a point in space. It is the basis for maps, navigation and surveying. Coordinate systems can be two-dimensional or three-dimensional, and can use a variety of units such as latitude, longitude, and feet. Coordinate systems are used in a variety of fields such as engineering, architecture, geology, and navigation. Coordinate systems help to identify and locate points in space and are essential for charting and mapping the physical world.
Cartesian Coordinates, named after the French mathematician and philosopher René Descartes, use a two-dimensional plane to represent points with an x-axis and a y-axis. These coordinates are expressed as ordered pairs (x,y) and represent points in relation to the origin (0,0). This can be used to plot graphs and equations, and is the most commonly used coordinate system.
Polar Coordinates are based on a two-dimensional plane centered on a pole. Points are expressed as ordered pairs (r,θ) where r is the distance from the pole and θ is the angle from the polar axis. This coordinate system is useful for finding distances and angles in a circle. It is used frequently in physics and astronomy.
To know more about coordinates system click-
https://brainly.com/question/27481419
#SPJ4
Part A
Melissa is planning a rectangular vegetable garden with a square patch for tomatoes. She wants the length of the garden to exceed three times the length of the tomato patch by 2 feet. She also wants the garden’s width to exceed the width of the tomato patch by 5 feet.
Let x represent the length, in feet, of the square tomato patch.
Write expressions to represent the length and width of Melissa’s vegetable garden in terms of x.
Enter the correct answer in the box.
y = ____
The length of the vegetable garden as a function of its length will be given as: y = 3x + 2
What is the expressions to represent the length and width of Melissa’s vegetable garden in terms of x?The expression of the garden width in terms of the width of the tomato patch is given as:
y = x + 5
Let the length of the garden be y
Let the length of the tomato patch be x
If Melissa wants the length of the garden to exceed three times the length of the tomato patch by 2 feet, the length of the vegetable garden as a function of its length will be given as:
y = 3x + 2
Therefore, If she also wants the garden's width to exceed the width of the tomato patch by 5 feet, the expression of the garden width in terms of the width of the tomato patch is given as:
y = x + 5
Learn more about an expression on https://brainly.com/question/14083225
#SPJ1
Two parallel train tracks, S and T, are cut by another train track, U. The train track U creates an interior angle of 101 with track S.
How can you use this information to solve for the measure of the same side interior angle made by track T and track U?
The measure of the same side interior angle made by track T and track U is; 79 degrees
How to find same side interior angles?Same side interior angles are defined as two angles that are on the interior of or between the two lines and particularly on the same side of the transversal. The same-side interior angles usually sum up to 180 degrees. Finally, when two parallel lines are intersected by a transversal line they will form 4 interior angles.
Now, we are told that the train track U creates an interior angle of 101 with track S.
Thus, using same side interior angles definition, the measure of the same side interior angle made by track T and track U is;
same side interior angle = 180 - 101
= 79 degrees
Read more about same side interior angles at; https://brainly.com/question/2009183
#SPJ1
28. From the four numbers below, Maria chose one number. The number is even and none of its digits are the same. The hundreds digit is triple the ones digit. The tens digit is greater than the thousands digit. Which number did Maria choose? A. 3672 B. 4983 C. 2682 D. 8462
Answer:
Maria chose C. 2682
Step-by-step explanation:
CALC HELP SEE PHOTO!!!
=================================================
Explanation:
Matrix C has 3 rows and 2 columns. The size or dimensions can be written in shorthand as 3x2.
Matrix D has dimensions 2x1, aka 2 rows and 1 column.
-------------------
Write "3x2" and "2x1" side by side in that exact order.
Notice the inner '2's match up. This is important. We need the inner numbers to match so that matrix multiplication is possible. The outer values '3' and '1' will help form the dimensions of the final answer matrix. The final answer matrix will have dimensions 3x1
Luckily we don't need to compute the value of CD. We just need to use the justification mentioned in the previous paragraphs to conclude that matrix CD is possible.
-------------------
Something like BC is not possible because B is 3x2 and C is 3x2. We don't have a match of inner values this time. We can then rule out the answer choice "BC". The answer choices "DC" and "CB" are ruled out for similar reasoning.
Jordan plotted the graph below to show the relationship between the temperature of his city and the number of cups of hot chocolate he sold daily.
Part A: In your own words, describe the relationship between the temperature the city and the number cups hot chocolate sold.
Part B: Describe how you can make the line of best fit. Write the approximate slope and y-intercept the line best fit. Show your work, including the points that you use to calculate the slope and y-intercept
Every 10 degrees higher in temperature, the slope would be around -3 so draw a line from (40,20) to (80,8) .
what is slope ?How steep a line is defined by its slope. Gradient overflow is a term used to describe a gradient-based mathematical equation (the change in y divided by the change in x). The slope is calculated by dividing the horizontal change (run) between two points by the vertical change (rise) between the same two points. The slope-intercept form of an equation is used to express the equation of a straight line, which is written as y = mx + b. The line's y-intercept is situated where the slope is m, b is b, and (0, b). For instance, the slope and y-intercept of the equation y = 3x - 7 (0, 7).
givenI won't use (40,2) because it is an extreme case.
If I were to draw a line from those points, I would roughly estimate that it would have the same number of dots above and below the line, indicating that it is a line of best fit.
Every 10 degrees higher in temperature, the slope would be around -3 so draw a line from (40,20) to (80,8) .
To know more about slope visit:
https://brainly.com/question/3605446
#SPJ1
Which of the following is not a Pythagorean triplet 3 4 5 6 8 10 8 15 16 10 24 26?
Answer:
8, 15, 16
Step-by-step explanation:
8, 15, 16 is not a Pythagorean triple because it doesn't satisfy the Pythagorean Theorem:
[tex]a^2 + b^2 = c^2[/tex]
When we plug this set of numbers into the theorem:
[tex]8^2 + 15^2 \stackrel{?}{=} 16^2[/tex]
[tex]289 \neq 256[/tex]
we get an inequality, not an equality which would make this set of numbers a Pythagorean triple.
Note that all of the other given triples satisfy the Pythagorean Theorem.
Find the coordinates of the vertices of the figure after the given transformation.
Dilation of 0.25
Answer:
Option 3
Step-by-step explanation:
Assuming the dilation is centered at the origin, it is known that for a dilation of scale factor [tex]k[/tex] centered at the origin, [tex](x,y) \to (kx,ky)[/tex].
After dilation of with a scale factor of 0.25 the pre image coordinates
V (1, 1), W (2, -2) T ( 4, 2) and U(3, 3) transformed to
V' (0.25, 0.25)
W' (0.5, -0.5)
T' (1, 0.5)
U' (0.75, 0.75)
How to find the coordinates after dilationDilation is a method of transformation that magnify or shrink the preimage depending on the scale factor
In dilation, transformation rule is as follows
(x, y) for a scale factor of r → (rx, ry)
following similar the rule for r = 0.25 we have
preimage image
V (1, 1) → (0.25 * 1, 0.25 * 1) → V' (0.25, 0.25)
W (2, 2) → (0.25 * 2, 0.25 * -2) → W' (0.5, -0.5)
T (4, 2) → (0.25 * 4, 0.25 * 2) → T' (1, 0.5)
U (3, 3) → (0.25 * 3, 0.25 * 3) → U' (0.75, 0.75)
Learn more about transformation here:
https://brainly.com/question/29329662
#SPJ1
help!
is this correct?
Answer:3/4
Step-by-step explanation:
1/4 multiplied 3/1 =3/4
the equation?
Does the point (51, 2) satisfy the equation y = 3x + 45?
yes
no
Question 1 (Multiple Choice Worth 1 points)
(03.01 MC)
Simplify √5 (8+3√6).
8√5 +3√30
O 5√10
130
O√40+15√6
So, the answer after simplifying the given square root equation is 8√5 + 3√30.
Define square.A square has four equal sides, and four vertices, and is a closed, two-dimensional object. It has parallel sides on either side. A square is also equivalent to a rectangle with equal length and width.
What are vertices?A vertex is a location in geometry where two or more curves, lines, or edges converge. As a result of this definition, vertices are the intersection of two lines that create an angle as well as the corners of polygons and polyhedra.
Solving,
√5 (8+3√6)
= √5 * 8 + √5 * 3√6
= 8 * √5 + √5 * 3√6
= 8√5 + 3√5*6
= 8√5 + 3√30
To know more about simplification visit:
https://brainly.com/question/2804192
#SPJ1