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abruzzese [7]
3 years ago
14

What is the diameter of a trampoline with an area of 49 square ft

Mathematics
1 answer:
Llana [10]3 years ago
7 0
Using the formula A = πr^2

49 = 3.14r^2
Divide both sides by 3.14

15.6 = r^2
Get the square root

r ≈ 4
d = r * 2

So the diameter is around 8...
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Hal earns n dollars per hour. Next month he will receive a 2% raise in pay per hour. The expression
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Answer:

1.02n

Step-by-step explanation:

A simplified version of this expression would be the following

1.02n

This is basically adding the n variables together. We do this by adding a 1 to the number being multiplied to n. This would basically add the 2% on top of what the original pay per hour is. We can prove that these two expressions are the same by substituting n for 10 in both expressions and solving them.

1.02n

1.02 * 10 = 10.2

n + 0.02n

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10 + 0.2 = 10.2

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Sliva [168]

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Peter says that 3/4 of a pizza is always the same as 6/8 of a pizza.Nadia says that while they are equivalent fractions, 3/4 and
Aleksandr-060686 [28]
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3 years ago
The perimeter of the triangle at the right is 22.6 in. What is the value of n?
blagie [28]

Answer:

A. 3.5

Step-by-step explanation:

The perimeter is just the sum of all of the side lengths. The sides of this triangle are n inches, (n + 5.2) inches, and (2n + 3.4) inches.

So, your equation is n + n + 5.2 + 2n + 3.4 = 22.6 inches.

You can combine like terms (adding together all of the n's and all of the numbers) to simplify your equation to 4n + 8.6 = 22.6 inches.

Subtract 8.6 from both sides of the equation to get 4n = 14, and divide both sides by 4 to get n = 3.5.

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