Answers
Answer:
(n-2)2 is in the formula (a-b)2 = a2- 2ab + b2
correct it by writing (n-2)2 = (n2 - 2(n)(2) + 2 raise 2)
Answer:
-2 * -2 = 4, but Maryam put -4 instead.
Related Questions
**GIVING HEART + 5 STARS TO WHOEVER ANSWERS FIRST**
please answer this question that's shown on the image!
thank you for at least trying to answer the question/thank you for answering this question!
Answers
Since the radius is half of the diameter and we know that the diameter of the trashball is 4 in, we half the 4. So the radius of the trashball is 2 in.
Now plug everything in the formula.
2(3.14)(2) = 12.56.
The circumference of the trashball is 12.56 in.
Answer:
The circumference talks about the outside of the circle. So the formula for the circumference of a circle is 2πr (r stands for radius and π is pi. In this case we use 3.14 for pi).
Since the radius is half of the diameter and we know that the diameter of the trashball is 4 in, we half the 4. So the radius of the trashball is 2 in.
Now plug everything in the formula.
2(3.14)(2) = 12.56.
The circumference of the trashball is 12.56 in.
Step-by-step explanation:
can u just give me brainliest
To make iced coffee, Sara puts her hot coffee into a refrigerator when it’s temperature is at 130 ℉ . The temperature of the coffee drops 4 ½ ℉ each hour. What is the temperature of the coffee after 5 hours?
PLEASE HELP I’M CONFUSED
Answers
Can anyone solve this?
Answers
1/2 × (23+15 ×11)
1/2 × (38 ×11)
1/2 × (23+15 ×11)
1/2×418
209ft²
Answer:
Option C)
Step-by-step explanation:
[tex]A=\frac{(23-15)(11)}{2} +(15)(11)[/tex]
[tex]A=44+165[/tex]
[tex]A=209ft^{2}[/tex]
Hope this helps
Enter the correct sum in each box. Use the number line to help you.
(A) 4.6 + (–5.9)
_________
|_________|
(B) –4.4 + 6.2
_________
|_________|
(C) 2.1 + 0.5
_________
|_________|
(D) –3.8 + (–1.3)
_________
|_________|
Answers
Answer:
(A) 4.6 + (–5.9)
-1.3
(B) –4.4 + 6.2
1.8
(C) 2.1 + 0.5
2.6
(D) –3.8 + (–1.3)
-5.1
A 3ft baby elephant standing next to a man casts a 7ft shadow, if the man casts a 14 foot shadow, how tall is he?
Answers
Answer:
6ft
Step-by-step explanation:
First you figure out 7/3 which is 2.3333333...
then do 14/2.33333333...
Can anyone help with this problem please?
Answers
answer is square root of 116
Answer: D) √116 units
Step-by-step explanation:
√(4^2 + 10^2) = 10.770
√116 = 10.770
please answer this question below, will be giving heart and five stars!
Answers
Answer:
Step-by-step explanation:
area of a circle - formula is πr²
using 3.14 for pi and the problem states the radius is 1.5.
3.14 × 1.5²
3.14 × 2.25 =
7.065 sq ft.
Hallie and Mattie donated blue jeans to the clothing drive. Hallie donated 4 pairs of blue jeans. Mattie donated 6 pairs of blue jeans. Write a ratio to represent the relationship between Hallie's donation of jeans and Mattie's donation of jeans.
Answers
Answer:
2:3
Step-by-step explanation:
Hallie's Donation : Mattie's Donation = 4:6
simplified, it is 2:3
If you do 4/6 you’ll simplify to get 2/3.
How can you use mental math and the inverse property of addition to find the sum [5.5+(-2.3)] +(-5.5 + 2.3)?
Answers
Answer:
To use mental math and the inverse property of addition to find the sum [5.5+(-2.3)] +(-5.5 + 2.3), you can use the following steps:
Rewrite the expression as [5.5+(-2.3)] +(-5.5) + 2.3.
Use the inverse property of addition to rewrite (-5.5) as 5.5, so the expression becomes [5.5+(-2.3)] +(5.5) + 2.3.
Use the inverse property of addition again to rewrite (-2.3) as 2.3, so the expression becomes [5.5+2.3] +(5.5) + 2.3.
Use the associative property of addition to rearrange the terms in the expression, so it becomes 5.5 + 2.3 + 5.5 + 2.3.
Use mental math to add the terms, which gives you a result of 15.8.
Therefore, the sum of [5.5+(-2.3)] +(-5.5 + 2.3) is 15.8.
Step-by-step explanation:
15.8
I hope this help’s
HELP ME PLEASE W/QUESTION
Answers
Answer:No matter what, the wind doesn't go to the volcanic areas.
Step-by-step explanation: notice that no matter what time, the wind never goes near the volcanoes. thats because the heat is pushing it away.
Nine out of 45 students said that their favorite color was red. what percentage of students said that red was their favorite color?
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So if theres 45 students in total, thats 100% of students, nine of those would be 20%
What are numbers that cannot be divided by 5 without a remainder?
Answers
105, 275, 315, 420, 945, 760
Hope this works
Can somebody please help me. All you have to do is write an equation for a problem and answer questions about it! (I will give brainliest to whoever can answer it!)
Answers
Football team needs to gain 10 yards to score touchdown. On the first play the team gained 7 yards. on the second play they were penalized and lost 5 yards on the. third play they gained 2 yards. how many more yards must they gain on the forth play in order to score?
A. 2 yards
B. 4 yards
C. 6 yards
D. 8 yards
PLEASE HELP
Answers
Answer:
Step-by-step explanation:
Marna thinks that about 35% of her mail is junk mail. She gets about twice as much regular mail as junk mail. Is she correct? Explain.
Answers
Step-by-step explanation:
70 percent and 35 is more than enough
Explanation:
The equations below represent the numbers y of tickets sold after x weeks for two different local music festivals. Create a table for the ticket sales each week.
Answers
Answer:Part a) 3.5 weeks
Part b) 185 tickets
Step-by-step explanation:
proportional or not proportional?
Answers
Answer:
Proportional
Step-by-step explanation:
The relationship is proportional because starting at (0,0) there's a constant rate between the number of plants and the number of roses. We can represent this proportional relationship as y=5x where k=5, the constant of proportionality.
Hope this helps<3
Write the equation of the line. Giving Brainliest to the fastest and most explanatory answer!
Answers
The 1 is the slope and slope is rise/run and it is up one over one, and the negative 4 is the b, which is also known as the y-intercept. You don’t need to find the x-intercept because it will not help you.
Hope this helps!
The equation of line shown in figure is,
⇒ y = x - 4
What is Equation of line?The equation of line in point-slope form passing through the points
(x₁ , y₁) and (x₂, y₂) with slope m is defined as;
⇒ y - y₁ = m (x - x₁)
Where, m = (y₂ - y₁) / (x₂ - x₁)
Given that;
Two points on the line are (4, 0) and (0, -4).
Now,
Since, The equation of line passes through the points (4, 0) and (0, -4).
So, We need to find the slope of the line.
Hence, Slope of the line is,
m = (y₂ - y₁) / (x₂ - x₁)
m = (- 4 - 0) / (0 - 4)
m = - 4 / -4
m = 1
Thus, The equation of line with slope 1 is,
⇒ y - 0 = 1 (x - 4)
⇒ y = x - 4
Therefore, The equation of line is,
⇒ y = x - 4
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Without computing, decide whether the value of each expression is much smaller than 1, close to 1, or much greater than 1
Answers
Answer: d
Step-by-step explanation:
it’s common sense add the 1 take ur cat to dinner and lake house horse shoe
The formula for any geometric sequence is an = a1 · rn - 1 , where an represents the value of the n th term, a1 represents the value of the first term, r represents the common ratio, and n represents the term number. What is the formula for the geometric sequence 4, 8, 16, 32, ...?
A. an = 4 · (1/2) n - 1
B. an = 2 · 4 n - 1
C. an = 32 · 2 n - 1
D. an = 4 · 2 n - 1
Answers
Answer: The correct answer would be
D. an = 4.2n-1
Step-by-step explanation: First, calculate the ratios between each term and the one that precedes it.
8/4=2 ....16/8=2...32/16= 2...
Upon comparing the ratios we see the ratio between each term and the one that precedes it is 2 for all the terms, the sequence is geometric, and the common ratio is r = 2.
Now, we simply need to find the other unknown values in the equation, a1= the first term of the sequence which is 4, Therefore a1=4
Looking at the options provided we see that no further missing quantity can further be found so we put this in the equation provided for a geometric sequence.
We get 4. 2n-1, which is our answer.
Solve the system. y = -x + 3 and y = 2x
the solution is (__,__).
Explain your choice of method.
Answers
Answer: (1, 2)
which means
x = 1
y = 2
Step-by-step explanation:
y = -x + 3
y = 2x
Because both equations are set equal to y, they can be set equal to each other. The equations are ready to go to use Substitution method.
Substitute.
-x + 3 = 2x
Add x to both sides.
3 = 3x
Divide by 3.
3/3 = x
1 = x
We can put the 1 in for x in either equation.
y = 2x
y = 2(1)
y = 2
Putting x for 1 into the other equation is a good check.
y = -x + 3
y = -1 + 3
y = 2
So the x and y that work in both of these equations is:
x = 1 and y = 2
The form that was asked for was ( , ).
So the answer is
(1, 2).
Answer: 1, 2
Step-by-step explanation:
Which proportional relationship has the greatest rate of change?
Answers
Answer:
Maybe C because 0 is equal to 0 and 2 is equal to 8 so they are multiplying each number by 4
Snow fell in Newton twice in one day. The town received inch of snow in the morning and another inch of snow in the afternoon. How many total inches of snow fell in Newton on that day?
Answers
Answer : 1+1=2
Step-by-step explanation
1inch snow in am plus 1in snow in pm equals a total of 2in snow for that day.
Look at the graph of a function below.
Which set builder notation represents the domain of the function in the graph?
A. {y|−1≤ y ≤ 3}
B. {y|1 ≤ y ≤ 9 }
C. {x|−1 ≤ x ≤ 3}
D. {x|1 ≤ x ≤ 9}
Answers
Answer:
A. {y|−1≤ y ≤ 3}
Step-by-step explanation:
because
Jess’s fish hook was 12 feet below the top of the water. He let out some of his line and the hook sunk another 3 feet. What is the depth of the fish hook now?
HELP ME PLEASE
Answers
The answer is 15
12 + 3 = 15
12 feet + 3 feet
12+3= 15 feet
how many solution does 4x-5(2x+1)=6x+1 have
Answers
The number of solution the equation 4x - 5 (2x + 1) = 6x + 1 have is one.
What is a solution?Solutions are the values of an equation where the values are substituted in the variables of the equation and make the equality in the equation true.
We have,
4x - 5 (2x + 1) = 6x + 1
4x - 10x - 5 = 6x + 1
-6x - 5 = 6x + 1
-5 - 1 = 6x + 6x
-6 = 12x
x = -6/12
x = -1/2
This means,
The equation has one solution.
Thus,
The equation has one solution.
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MATH MATH MATH MATH MATH MATH
Answers
Answer: Y = 3/8
Step-by-step explanation:
You can either use the rise/run method or subtract 2 points from the line to get the slope. You can do the rise/run method by starting at a point that is on the corner of the square and keep counting how many spaces you have to go until you get to the next even point. This number will be on the bottom, then count up until you get to that even point,this amount of spaces this takes will be on top. Since there are only 2 visible points on this graph,I will use the other method. You can use either the y1-y2/x1-x2 formula or do this
8,3
0,0
8,3
Remember,the y goes on top! Our slope is 3/8,also since the y intercept is the orgin/0,0 we don't need to add it at the end. I hope this helps and wasn't too complicated!
y = 3/8(x) is the equation that represents the proportional relationship in this graph, for y in terms of x.
What is proportional?In mathematics, two sequences of numbers, frequently experimental data, are proportional or directly proportional if their corresponding elements have a constant ratio, known as the coefficient of proportionality or proportionality constant.
If corresponding elements in two sequences have a constant product—also known as the coefficient of proportionality—then the two sequences are inversely proportional.
This definition is frequently broadened to include associated varying amounts, also known as variables.
We can see that when y = 1.5, then x = 4
And when y = 3, x = 8
Putting the value in slope form
y - y1 = m(x - x1)
3 - 1.5 = m(8 - 4)
1.5 = m(4)
m = 1.5/4
m = 3/8
Now simply we put the value in y-intercept form
y - 3 = 3/8(x - 8)
y = 3/8(x) - 3 + 3
y = 3/8(x)
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Give the next term in the following sequence:
2, 9, 28, 65, 126, 217, ...
Answers
Answer:
Step-by-step explanation:344
Answer:344
Step-by-step explanation:
Ella's family took a road trip to Niagara Falls. Ella slept through the last 14% of the trip. If Ella fell asleep after they had travelled 602 miles, what was the total length of the trip?
Help please I’ll give brainliest after I finish my homework
Answers
Answer:The length of the trip is 780 mile
please help I don't understand these thank you
Answers
Answer:The mean goes up from approximately 80.4 to 82.
Step-by-step explanation:
Before adding 101°, the mean i2:
(58 + 61 + 71 + 77 + 91 + 100 + 105 + 102 + 95 + 82 + 66 + 57)/12 = 80.4
After adding the value 101°, the mean is:
(58 + 61 + 71 + 77 + 91 + 100 + 105 + 102 + 95 + 82 + 66 + 57 + 101)/13 = 82
The mean goes up from approximately 80.4 to 82.
Hope it helps :)