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Stels [109]
3 years ago
11

Will give brainlist

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
7 0

Answer:

40.5°

Step-by-step explanation:

So this problem is a ratio setup. First, you have to calculate the total circumference of the circle using the following formula:

c = 2πr

Where c is the circumference, and r is the radius of the circle. Therefore:

c = 2π(40)

Simplify:

c = 80π

Now if the arc is 9π miles long, then it's a fraction of the whole circle, which is 360° . We can set this up as follows:

\frac{9\pi }{80\pi } = \frac{x}{360}

Now if we cross-multiply to solve for x:

(9)(π)(360) = (80)(π)(x)

When simplified dividing by 10π :

9*36 = 8x

Simplfy.

324 = 8x

Solve for x.

x = 40.5

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Answer:

\large\boxed{r=2\sqrt2}

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Substitute the coordinates of the given points (5, 4) and (3, 2):

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Select all the true statements. Triangle A B C where the measure of angle A is 2 x plus 1 degree, angle B is x degrees, and angl
Step2247 [10]

Answer:

B= 41; C  = 56; A = 83

Step-by-step explanation:

Given

A = 2x + 1

B = x

C = x + 15

Required

Arrange the angles from smallest to largest

First, we need to determine the value of x.

Since, it is a triangle:

A + B + C = 180

Substitute values for A, B and C

2x + 1+ x + x + 15 = 180

Collect Like Terms

2x + x + x = 180 - 15 -1

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Solve for x

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x= 41

Solve for A, B and C

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C  = 56

From Smallest to Largest, we have:

B= 41; C  = 56; A = 83

6 0
3 years ago
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