$\bf \textit{area of a circle}=A=\pi r^2
\\\\\\
\cfrac{dA}{dt}=\pi \cdot 2r^1\cdot \cfrac{dr}{dt}\implies \cfrac{dA}{dt}=\pi \cdot 2r\cdot \cfrac{dr}{dt}\quad 
\begin{cases}
r=2\\
\frac{dr}{dt}=3
\end{cases}
\\\\\\
\cfrac{dA}{dt}=\pi \cdot 2(2)(3)$

3 0

3 years ago

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PLS HELP!! :))<br><br> Find the volume......

OLEGan [10]

Answer:

19 + 14 + 10 = 43

Step-by-step explanation:

7 0

2 years ago

Which number line represents the solution set for the inequality 3(8-4x)<6(x-5)?

djverab [1.8K]

we have

$3(8-4x) 54\\ x > (54/18)\\x > 3$

the solution is the interval -------> (3,∞)

therefore

the answer in the attached figure

3 0

3 years ago

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