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2 years ago

8

Hillsboro Middle School has 714 students. Joanna surveys a random sample of 34 students and finds that 9 of them play a musical

instrument. How many students at the school are likely to play a musical instrument?

1 answer:

Lilit [14]2 years ago

3 0

Answer:

about 189

Step-by-step explanation:

because out of 34 is 9 so 714 divided by 34 is 21 and 21 multiply by 9 is 189.

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The circumference of a circle is 12 inches. What is the radius

IceJOKER [234]

Greetings!

"<span>The circumference of a circle is 12 inches. What is the radius?"...

We can use the formula to find the circumference of circle to solve this:
</span> $2 \pi r$
<span>
Input the information we know:
</span> $2 \pi r=12$
<span>
Solve for r, using the properties of equality:

Simplify.
</span> $6.28r=12$
<span>Divide both sides by 6.28
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Simplify.
</span> $r=1.91$

The radius is 1.91cm long.

Hope this helps.
-Benjamin

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Alex777 [14]

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Step-by-step explanation:

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timama [110]

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