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Amanda [17]
3 years ago
15

Solve for r 0.5(r+2.76)=3

Mathematics
1 answer:
11111nata11111 [884]3 years ago
8 0

Answer:

r=1.43147648, −4.19147648

Step-by-step explanation:

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Find the surface area of a sphere that has a volume of 288 cu. in.
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R - radius

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\dfrac{4}{3}\pi R^3=288\qquad\text{multiply both sides by 3}\\\\4\pi R^3=864\qquad\text{divide both sides by}\ 4\pi\\\\R^3=\dfrac{216}{\pi}\to R=\sqrt[3]{\dfrac{216}{\pi}}\\\\R=\dfrac{\sqrt[3]{216}}{\sqrt[3]{\pi}}\\\\R=\dfrac{6}{\sqrt[3]{\pi}}\ in

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Substitute:

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