4 years ago

The formula for finding the area of a circle is a equals pi r square. solve the formula for r.

Mathematics

1 answer:

Reika [66]4 years ago

5 0

I hope this helps you

Area=pi.r^2

r^2=Area/pi

r= square root of Area/pi

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Determine whether the equation y-y=y is sometimes,always, or never true?

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Given the function f(x) = -5|x + 11 + 3, for what values of x is f(x) =-12?

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3 years ago

If a wheel with a radius of 80 inches spins at a rate of 50 revolutions per minute, find the approximate linear velocity in mile

Lubov Fominskaja [6]

$\bf \textit{arc's length}\\\\
s=rw\qquad 
\begin{cases}
r=radius\\
w=\textit{angular speed}
\end{cases}\qquad w=\cfrac{50 rev}{min}\cdot \cfrac{2\pi }{rev}
\\\\\\
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-------------------------------\\\\
\textit{now to convert it to miles/hr}
\\\\\\
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3 years ago

(7 * 10-5) (5 x 10-) =<br><br>x 10

blagie [28]

Have you learned PEMDAS? (Parenthesis, exponents, multiplication, division, addition, subtraction). That is what I am going to do here.

The first parenthesis, let's solve. 7*10=70-5=65

The second parentheisis: I am assuming the negative sign is a typo, and this answer will be off if it is not. Sorry. 5*10=50

65*50=3250

I hope this helps, and let me know if you need further assistance.

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3 years ago