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2 years ago

Help asap plzzz I NEED HELP !!!!!!!!

1 answer:

4 0

Answer:

1520.5 in^2

Step-by-step explanation:

Surface area=2*pi*r^2+2*pi*r*h=2*pi*r*(r+h)=2*pi*11*22=1520.5 in^2

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worty [1.4K]

Answer:

The maximum height is 1087.06 ft.

Step-by-step explanation:

We need to take the derivative of the equation and set it to 0.

$y' = - 32x + 254 = 0\\32x = 254\\x = 7.9375$

We now can plug x = 7.9375 into the original equation.

$y=-16x^{2} +254x+79\\y=-16(7.9375)^{2}+254(7.9375)+79\\y=1087.06 ft$

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