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3 years ago

5

Jessie needs to calculate the circumferenceof a circle,but she does not have a calculator.since the formula for the circumferenc

es of a circle is c=

1 answer:

Brilliant_brown [7]3 years ago

8 0

Answer:

c=2πr

Step-by-step explanation:

Multiply 2 by pi and the radius. If you don't have a calculator you could just multiply 2x3.14r instead of all of pu

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2 years ago

10(11-x) pls I need help

nadezda [96]

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Lelu [443]

Check the picture below.

$\bf \displaystyle\int\limits_{-2}^{2}~[\stackrel{\textit{above function}}{(10-x^2)}~~-~~\stackrel{\textit{below function}}{(x^2+2)}]dx\implies \int\limits_{-2}^{2}~(10-x^2-x^2-2)dx \\\\\\ \displaystyle\int\limits_{-2}^{2}~(8-2x^2)dx\implies \left. 8x\cfrac{}{} \right]_{-2}^{2}-\left. \cfrac{2x^3}{3} \right]_{-2}^{2} \\\\\\ ([16]-[-16])~~-~~\left( \left[ \cfrac{16}{3} \right]-\left[ -\cfrac{16}{3} \right]\right)\implies (32)~~-~~\left( \cfrac{32}{3} \right) \\\\\\ \cfrac{64}{3}\implies 21\frac{1}{3}$

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3 years ago