3 years ago

What is the volume of a sphere with radius 9? Round to the tenths.

Mathematics

1 answer:

GrogVix [38]3 years ago

8 0

Answer:

V=3053.6

Step-by-step explanation:

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$9x^{2} + 4y^{2} =144$
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$9x^{2} + 4y^{2} =144$
$4x^{2} + 4y^{2}=96$
by the difference
5 $x^{2}$ =48
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) Jess has saved dimes ($ 0.10) and quarters ($ 0.25) in their piggy bank. Define the variables and write a

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Answer:

Quarters = 10

Dimes = 15

Step-by-step explanation:

d = number of dimes, q = number of quarters

d + q = 25 is the equation for number of coins

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First, solve for d in terms of q:

d + q = 25

d = 25 - q

Then substitute that into the other equation:

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And back to d = 25 - q, d = 25 - 10 = 15

Check the math:

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