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Nostrana [21]
3 years ago
11

Which of the following is the best approximation of the volume of a sphere with a 7 cm radius?

Mathematics
2 answers:
White raven [17]3 years ago
8 0

To find the volume of a sphere you would use the equation: \frac{4}{3}πr³

You would plug in the radius in r

Your equation would look like this now:

\frac{4}{3}π(7)³

When you solve that you would get:

1436

Since it's 3 dimentional you would use ⇒ ³

Your answer would be B. 1436cm³


Zielflug [23.3K]3 years ago
7 0

the answer is 1436.03 but your approximation is 1436

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Answer

a. The backpack is $4.50

b. The sweatshirt is $2.70

Step-by-step explanation:

a. 30 x 0.15 = 4.50 (The 0.15 is from the price you are actually paying for the item. Because the item is 85% off, you are paying for 15% of the usual price. 15% as a decimal is 0.15 so you multiply that to the original price to find the amount u will pay.)

b. 18 x 0.15 = 2.70  

5 0
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Substitute:

m=\dfrac{-6-0}{0-3}=\dfrac{-6}{-3}=2

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4 0
3 years ago
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kicyunya [14]

Answer:

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3 0
3 years ago
An olympic sprinter can run 56 yards in 8 seconds. At the same rate, how long (in seconds) would it take the sprinter to run 81
aniked [119]

Answer:

20,365.7 seconds

Step-by-step explanation:

First, we need to know how to convert yards to miles, as the question is in miles. We know that 1 mile is equivalent to 1760 yards. So we have:

1 mi = 1760 yards

If we multiply both sides by 81:

81 mi = 142,560‬ yards

And we know that the sprinter needs 8 second to run 56 yards:

8 s = 56 yards

If we divide both sides by 56 we get the time he needs for 1 yard:

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So, he needs 20,365.7 seconds to run 81 miles (142,560 yards)

6 0
3 years ago
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postnew [5]

Answer:

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Step-by-step explanation:

8 0
3 years ago
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