Answer:
<h2>b. 69.08</h2>
Step-by-step explanation:
The formula of a circumference of a circle:
![C=2\pi r](https://tex.z-dn.net/?f=C%3D2%5Cpi%20r)
r - radius
We have r = 11. Substitute:
![C=2\pi(11)=22\pi](https://tex.z-dn.net/?f=C%3D2%5Cpi%2811%29%3D22%5Cpi)
![\pi\approx3.14\to C\approx(22)(3.14)=69.08](https://tex.z-dn.net/?f=%5Cpi%5Capprox3.14%5Cto%20C%5Capprox%2822%29%283.14%29%3D69.08)
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The third one, because she got -8 for the product's exponent by multiplying 4 and -2 instead of adding them, show the answer should have been 10^2.
Answer:
B) 3 1/3
Step-by-step explanation:
To divide the fractions, simply follow these steps.
First, flip the second fraction, so that the numerator is the denominator, and the denominator is the numerator. Change the division sign into a multiplication:
(2/3)/(1/5) = (2/3) * (5/1)
Next, multiply straight across:
(2/3) * (5/1) = (2 * 5)/(3 * 1) = 10/3
Finally, simplify. Change the improper fraction into a mixed:
10/3 = 3/3 + 3/3 + 3/3 + 1/3 = 3 1/3
B) 3 1/3 is your answer.
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