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alexdok [17]
3 years ago
15

HELP WITH THIS QUESTION, ASAP!

Mathematics
1 answer:
aksik [14]3 years ago
8 0

Answer:

First choice:

         \large\boxed{\large\boxed{h=\frac{3V}{784\pi};21cm}}

Explanation:

<em><u>1. Formula for the volume of a cone</u></em><u> (given)</u>

<em><u /></em>

      V=\frac{1}{3} (28^2)\pi h

<em><u>2. Identify the inverse of this function</u></em>

Solve for h:

       3V=(28)^2\pi h\\ \\ \frac{3V}{(28)^2\pi}=h\\\\h=\frac{3V}{(28)^2\pi}\\\\h=\frac{3V}{784\pi}

<em><u>3. Find the height of the cone, if its volume is 5488πcm³</u></em>

Subsititue V with 5488π

          h=\frac{3(5488\pi cm^3)}{784\pi cm^2}\\\\h=21cm

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For the equation given below, evaluate y′ at the point (−2,−1).<br><br> 3xy−3x−12=0.
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Answer:

Y'=3xy-3x-12

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Step-by-step explanation:

The function of the equation at the point (-2,-1)

is where the equation make the function go to zero:

Y'=3xy-3x-12

Y'=F(-2,-1)=[3(-2)(-1)]-[3(-1)]-12

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