3 years ago

What is the surface area of a sphere with a radius of 13 units?

Mathematics

1 answer:

Vinil7 [7]3 years ago

3 0

Answer:

676pi units ^2

Step-by-step explanation:

apex

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Step-by-step explanation:

Given

$1\frac{1}{4}\ dozen\ cupcakes = 1\frac{2}{3}\ cups$

Required

Determine the number of cupcakes for 1 flour

Represent this with x

$x = 1\ cup$

$1\frac{1}{4}\ dozen\ cupcakes = 1\frac{2}{3}\ cups$

Cross Multiply

$x * 1\frac{2}{3}= 1\frac{1}{4}\ dozen * 1$

$1\frac{2}{3}x = 1\frac{1}{4}\ dozen$

Convert fractions to improper fraction

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Solve for x

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$x = \frac{3}{4}\ dozen$

$1\ dozen = 12$

So, we have:

$x = \frac{3}{4} * 12$

$x = 9\ cups$

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