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goldfiish [28.3K]
3 years ago
7

In a circle a central angle of 144 intercepts an arc of 15 inches. find the length of the radium of the circle in inches

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
6 0

Answer:

Correct option: c)

radius = 6 inches

Step-by-step explanation:

The complete arc of a circumference has 360 degrees, and the length is 2*pi*radius

Knowing this, we can use a rule of three to solve this problem:

144 degrees - > 15 inches

360 degrees -> 2 * pi * radius

144/360 = 15/(2pi*radius)

2pi*radius = 360 * 15 / 144

radius = 37.5/(2pi)

radius = 5.9683 inches

Rounding to nearest whole number, we have radius = 6 inches

Correct option: c)

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<h2>- 2</h2>

Step-by-step explanation:

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y=mx+b

m - slope

b - y-intercept

We have

y=4-2x=-2x+4

Therefore the slope is equal to -2.

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natta225 [31]

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What is 999+999+999+23456
ohaa [14]

Your answer is 26,453

Although I don't feel as if this is a homework question, I will still show the work.


Work:

Step 1: 999 + 999 = 1,998

Step 2: 1,998 + 999 = 2,997

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Hope I was able to help! :)

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What is the measure of each angle of a regular 24-gon? If necessary, round to the<br> nearest tenth.
Butoxors [25]

Answer:

165°

Step-by-step explanation:

Find the interior angle measure by using the formula, ((n - 2) x 180°) / n

Plug in 24 as n:

((n - 2) x 180°) / n

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(22 x 180°) / 24

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4 0
3 years ago
Find the missing side lengths leave your answer as a racials simplest form
Aleksandr-060686 [28]

Answer:

m=7\sqrt3

n=7

Step-by-step explanation:

Hi there!

We are given a right triangle (notice the 90°) angle, the measure of one of the acute angles as 60°, and the measure of the hypotenuse (the side OPPOSITE from the 90 degree angle) as 14

We need to find the lengths of m and n

Firstly, let's find the measure of the other acute angle

The acute angles in a right triangle are complementary, meaning they add up to 90 degrees

Let's make the measure of the unknown acute angle x

So x+60°=90°

Subtract 60 from both sides

x=30°

So the measure of the other acute angle is 30 degrees

This makes the right triangle a special kind of right triangle, a 30°-60°-90°  triangle

In a 30°-60°-90° triangle, if the length of the hypotenuse is a, then the length of the leg (the side that makes up the right angle) opposite from the 30 degree angle is \frac{a}{2}, and the leg opposite from the 60 degree angle is \frac{a\sqrt3}{2}

In this case, a=14, n=\frac{a}{2}, and m=\frac{a\sqrt3}{2}

Now substitute the value of a into the formulas to find n and m to find the lengths of those sides

So that means that n=\frac{14}{2}, which is equal to 7

And m=\frac{14\sqrt3}{2}, which simplified, is equal to 7\sqrt3

Hope this helps!

7 0
3 years ago
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