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Flauer [41]
3 years ago
15

PLEASE help me with this problem and explain the steps you used.

Mathematics
1 answer:
Bad White [126]3 years ago
7 0
I hope this helps you




14= 2/3 (9y-15) divided 2 each sides



7= 9y-15/3


7.3= 9y-15


21+15= 9y


36= 9y


y= 4

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Step-by-step Explanation:

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To calculate the volume of the hemisphere, we need to get the radius of the hemisphere = the radius of the cone.

Since volume of cone = 270πcm³, we can find r using the formula for the volume of cone.

==> Volume of cone = ⅓πr²h

⅓*π*r²*10 = 270π

⅓*10*r²(π) = 270 (π)

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= ½(972π)

Volume of hemisphere = 486πcm³

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= volume of cone + volume of the hemisphere.

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= 756πcm³

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