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2 years ago

5

The formula for the circumference of a circle is C = 2r, where r is the radius and C is the circumference. The equation solved f

or r is r = r equals StartFraction C Over 2 pi EndFraction.

2 answers:

Lubov Fominskaja [6]2 years ago

6 0

Answer:

r = c/2pi

Step-by-step

c= pi*d

d=2r

c = 2*r*pi

Roman55 [17]2 years ago

3 0

Answer:

r=8

Step-by-step explanation:

The answer is r8 for anyone looking. (e2020)

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2 years ago

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2 years ago

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3 years ago

(6x10^2)/(3x10-5) help what is this in standard form?

Tasya [4]

<u>Answer: </u>

The standard form of $\frac{6 \times 10^{2}}{3 \times 10^{-5}}$ is 20,00,0000

<u>Solution: </u>

Given that $\frac{6 \times 10^{2}}{3 \times 10^{-5}}$ ---- eqn 1

To write $\frac{6 \times 10^{2}}{3 \times 10^{-5}}$ in standard form,

We know that $\bold{\frac{1}{a^{-m}} = a^{m}}$ .So $\frac{1}{10^{-5}}$ becomes $10^{5}$ .

Now eqn 1 becomes,

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We know that $\bold{a^{m} \times a^{n}=a^{m+n}}$ , so $10^{2} \times 10^{5} = 10^{7}$

Now eqn 2 becomes,

$= \frac{6}{3} \times 10^{7}$

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Expanding $10^{7}$ :

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3 years ago

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