2 years ago

I need help with problems 27,28 and 29

Mathematics

1 answer:

tatyana61 [14]2 years ago

4 0

29 is H
i will tell u what 28 is in a minute

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Find the circumference of a circle with a radius of 10. Leave in terms of pi

Alexus [3.1K]

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$C=2\pi r$

r - radius

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$C=2\pi(10)=20\pi$

<h3>Answer: C = 20π</h3>

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3 years ago

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2 years ago

Fifteen times the square of a non-zero number is equal to 20 times number.What is the number? Its not 4/3

e-lub [12.9K]

The number is (2√3) / 3

To find the missing number, convert what it says in words to an equation:
$15 {x}^{2} = 20x$
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${x}^{2} = \frac{20}{15} \\ \\ {x}^{2} = \frac{4}{3}$
Take the square root:
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