What is 5x to the second power

Answers

Answer 1

Answer: the answer is
25 because you multiply the base number twice

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Choose the number that is a solution of the inequality: a + 9 < 5 A) -2 B) 5C) 0D) -5( i kept getting -4 am i wrong or are the choices wrong?)

1 & 2) what are the surface areas? please explain.

Answers

To find the surface area of a cylinder, use the formula SA = 2(pi)(radius^2) + 2(pi)(radius)(height).

So now, plug in what you know.

SA = 2(3.14)(5^2) + 2(3.14)(5)(9)
SA = (6.28)(25) + (6.28)(45)
SA = 157 + 282.6
SA = 439.6 square cm

439.6 square cm is your surface area

What is the value of the ratio of the surface area to the volume of the right prism?A.
1.9

B.
1.05

C.
0.9

D.
0.53

Answers

The correct answer for the question that is being presented above is this one: "A. 1.9"

We can get the surface area of the rectangular prism by using this formula
A = 2 ( w l + h l + h w )
Given that the
l = 5
w = 4
h =2

Then, the surface area is
A = 2 ( w l + h l + h w )
A = 2 (4*5 + 2*5 + 2*4)
A = 2 (20 + 10 + 8)
A = 2 (38)
A = 76 m^2

In order to get the volume, we have to use this formula.
Volume = l * w * h
Volume = 5 * 4 * 2
Volume = 40m^3

the value of the ratio of the surface area to the volume of the right prism
76:40 = 19:10 = 1.9

22 + 17 = 20 + _____

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

22 + 17 = 39

Take away 20 from 39.

39 - 20 = 19

What is the value of a in the equation a = 2 + 3a + 6?

Answers

a = 2+3a +6

a-3a = 8

-2a = 8

a = -8/2 = -4

Sara put 7 boxes in her closet. Each box is for holding a different type of seashell. So far, there are 0 shells in each box. How many shells does Sara have? Tell what math you used to find the answer.

Answers

Given that Sara put 7 boxes in her closet.

So number of boxes = 7

Then it says that each box is for holding a different type of seashell. So far, there are 0 shells in each box.

So the number of seashell in 1 box = 0

We need to find about how many shells does Sara have.

To find that we will just multiply (number of boxes) by (number of seashell in 1 box). Which is given by 7 times 0.

we know that product of a number and 0 is always 0.

Hence final answer is 0 seashell.

You read 50 pages in an hour. Your sister reads 40 pages in an hour. Explain how to find out how many more pages you read than your sister reads in 1/2 hour?A. I know that 50 • 40 = 2,000, so I read 1,000 more pages than my sister reads in 1/2 hour.
B. I know that 50 ÷ 40 = 5454, 5 ÷ 4 = 1 1/4, so I read 1 1/4 more pages than my sister reads in 1/2 hour.
C. Because I read 10 more pages than my sister reads in 1 hour, I read 5 more pages in 1/2 hour.
D. Since 5 • 4 = 20, I read 20 more pages than my sister reads in 1/2 one half hour.

Answers

C because you have to do 50÷2=25 and 40÷2=20 and 20-25=5

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Devon is buying 3 greeting cards that cost $0.97 each. How can rounding be used to estimate the total cost of the cards?Since each card is about $1, the total cost is approximately 3 + 1 = $4.Since each card is about $1, the total cost is approximately 3 x 1 = $3.Since he is buying about 10 cards, the total cost is approximately 10 x 0.97 - $9.70.Since he is buying about 10 cards, the total cost is approximately 10+ 0.97 = $10.97.

I need help i don't understand

#8 can anyone help? I need help solving this and showing the work