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avanturin [10]
2 years ago
11

Please I need help!!

Mathematics
1 answer:
Ne4ueva [31]2 years ago
7 0

Answer:

From my thoughts I think the answer is 28

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In your own words, explain why C=2πr, where C is the circumference of a circle of radius r. Include a description of the number
schepotkina [342]

Answer:

Pi—which is written as the Greek letter for p, or π—is the ratio of the circumference of any circle to the diameter of that circle. Regardless of the circle's size, this ratio will always equal pi(3.1415).

There are two radii in one diameter. The formula for circumference is pi*d when using diameter which explains the two in front of the formula given by your teacher.

Step-by-step explanation:

7 0
2 years ago
Please help me!!!
Alika [10]

Answer:

Her GPA is 3

Step-by-step explanation:

an A is 4 points

B is 3 points

C is 2 points

D is 1 point

She has A, A, A, B, C, D for her grades. (6 grades total)

That equals

4 + 4 + 4 + 3 + 2 + 1 = 18 points

Then we divide the points by the number of grades we're looking at.

18/6 = 3

Her grade point average is 3.

5 0
2 years ago
Read 2 more answers
Pls help me, all of this I’m sending is due by 11:59pm. And my time right now is 9:16pm. So plsss
yan [13]

Answer:

4(7y - 9)

Step-by-step explanation:

The greatest common factor you can factor out of both monomials is 4.

28y - 36

4(7y - 9)

4 0
3 years ago
Read 2 more answers
A region with a 5-mile radius has a population density of about 3100 people per square mile. Find the number of people who live
Gwar [14]

Answer:

243,000 people

Step-by-step explanation:

First, what we need to do is to calculate the area of the region using the 5-mile radius

Mathematically, we can calculate this as the area of a circle

Area = pi * r^2

Our r here is 5 miles

Area = pi * 5^2 = pi * 25 = 78.54 square miles

Now to get the population, we know that per square mile we have 3,100.

Hence per 78.54 square mile, we have 78.54 * 3100 = 243,273 people

To the nearest thousand, 243,000

4 0
3 years ago
Jake built a skateboard ramp, if the distance of the ramp is 10 ft. The ramp rises a
ikadub [295]

Answer:

Angle made by ramp with ground is ≈19.29^{\circ}

Step-by-step explanation:

Diagram of given scenario is shown below.

Given that,

Horizontal Distance of Skateboard ramp is 10 ft.

Height of Skateboard ramp is 3.5 ft.

From figure,

It is forming a Right angle triangle \triangle ABC.

In \triangle ABC, AB=3.5 and BC=10.

Clearly see that we need to find measure of angle \angle C.

Using Trigonometric ratio:

     Tan(\theta)= \frac{Perpendicular}{Base}

So,  Tan(\angle C) = \frac{AB}{BC} =\frac{3.5}{10} =0.35

Then \angle C=Tan^{-1} (3.5)=19.290046^{\circ}

Therefore, Angle made by ramp with ground is ≈19.29^{\circ}

8 0
3 years ago
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