3 years ago

#10

Mathematics

1 answer:

amm18123 years ago

3 0

Answer:

There are 3 green marbles in the box.

Step-by-step explanation:

15% = 0.15

To figure out how much 15% of 21 is, you must multipl the decimal form of the percentage by the whole number. This will give you how much of that number that percentage is.

0.15 * 21 = 3.15

But you can't have 0.15 of a marble, so you must round as well.

3 green marbles in the box.

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Find the circumference of a circle with a radius of 35 inches in terms of 7 and to the nearest tenth of an inch.

Lera25 [3.4K]

Answer and Step-by-step explanation:

The circumference formula for a circle is:

C = $2\pi r$

Plug 35 in for r (radius) and solve.

C = $(35) 2\pi\\\\C = 70\pi\\\\C = 219.9$

So, approximately 219.9 $in^2$ is the answer.

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2 years ago

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Naddik [55]

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3 years ago

What is the slope of a line perpendicular to the line whose equation is

GenaCL600 [577]

Answer:

The slope or incline is -5

Step-by-step explanation:

rewrite to get the form

y = ...

x - 5y = -10

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divide left and right if the = sign by -5 gives:

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So the incline is 1/5

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3 years ago

Can someone please help me with this problem? <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%28%20x%5E%7B2%7D%20%2B8x%2

hodyreva [135]

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