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Kisachek [45]
3 years ago
6

Rearrange the formula A = \pi r ^ ( 2) for r

Mathematics
1 answer:
tatyana61 [14]3 years ago
3 0
Consider re-writing this formula as "A = pi*r^2."  The backslash symbol "\" is unnecessary.

If A = pi*r^2, and we wish to solve for r, then divide both sides by pi:

A/pi = r^2

Taking the square root of both sides,   sqrt(A/pi) = r (r must be positive in this situation).
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Can the product of 4 and any number always be written as a sum of two equal addends
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Answer: Yes

Step-by-step explanation:

Example : 4 x 2 = 8

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6 0
3 years ago
What is 20 5/81 in simplest form
Marizza181 [45]
20 5/81 in its simplest form is 20 5/81.

20 5/81 originally looks like this ⇒ 1625/81

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     <u>  0020  5/81</u>        
81 | 1625
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5 0
3 years ago
Which of the following sets contain all roots of the polynomial
Zarrin [17]

All these given roots are contained in option C.

The given equation is :

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9x^{2}-4=0,x+1=0

x^{2}=\frac{4}{9},x=-1

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Roots = -1,\frac{-2}{3} ,\frac{2}{3}

Hence these lie in between (\frac{-3}{2} ,\frac{3}{2})


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Eleven students are competing in an art contest. In how
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Hi there

I think I may have the answer for you!

<u>Answer:</u>

<u />

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ANTONII [103]
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3 years ago
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