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insens350 [35]
3 years ago
11

Please answersee image bellow

Mathematics
1 answer:
vova2212 [387]3 years ago
4 0

Answer:

<h2>62.832 mi.²</h2><h2></h2>

Step-by-step explanation:

surface area = 2πrh + 2πr²

where r = 2 miles radius

          h = 3 miles

<u>plugin values into the formula</u>

surface area = 2πrh + 2πr²

                     = 2π (2) 3  +  2π (2)²

                     = 37.699  +  25.133

                     = 62.832 mi.²

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kompoz [17]
<span>No. 

To check this yourself, you need the denominators to be the same to be able to easily compare the two. 

For example, does 5/8 = 40/64? 

1. Determine what you would need to do to the denominator in 5/8 to make it 64. (Multiply it by 8) 
2. Find what fraction is equal to 1 with a denominator of 8. (8/8) 
3. Multiply the fraction 5/8 by the one you just found (8/8), numerator times numerator, denominator times denominator. 
4. Compare the answer with the second fraction. 

It is important that when you multiply the denominator by any number you multiply the numerator by the same number. This is to preserve the fraction's value. This works because any number divided by itself is equal to 1, AND when you multiply any number by 1 (whether 1 is in the form of 1 or 4/4 or 8/8 or 234/234), the answer is always equal to the original number. 

Another way to check would be to simply enter 1/2 into a calculator, write down the answer. Next enter 5/8 into a calculator. If the answers are the same, they are equal.</span><span>
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8 0
3 years ago
Read 2 more answers
A student has taken three math tests so far this semester. His scores for the first three tests were 65​, 67​, and 69. Suppose h
Aleonysh [2.5K]

Answer:

75

Step-by-step explanation:

Scores for his first tests were 65, 67, 69.

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x=6, 6th test score

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So, on his 6th test he will get a score of 75

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3 years ago
The great Pyramid outside Cairo, Egypt, has a square base measuring 756 feet on a side and a height of 480ft
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Answer:

V = 3,386,880 cubic yards

V = 91445760 cubic feet

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Answer = 91445760 ft^3

Step-by-step explanation:

converting feet into yards

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1 yard = 3 ft  

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a.) the volume of the pyramid V = (a^2*h)/3 = (a^2*h)(1/3)

V = (756*(1/3))^2*480*(1/3)*(1/3)

V = 3,386,880 cubic yards

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