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Ghella [55]
2 years ago
7

Pls help me taking. Test I need answer fast

Mathematics
1 answer:
pychu [463]2 years ago
5 0

Answer:

its b

Step-by-step explanation:

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How to find arc length
FrozenT [24]
A circle is 360° all the way around; therefore, if you divide an arc's degree measure by 360°, you find the fraction of the circle's circumference that the arc makes up. Then, if you multiply the length all the way around the circle (the circle's circumference) by that fraction, you get the length along the arc.
3 0
3 years ago
Suzette ran and biked for a total of 44.75 mi in 4 h. Her average running speed was 6.5 mph and
vaieri [72.5K]

Suzette ran for 1.5 hours and biked for 2.5 hours.

a. Let x = total hours Suzette ran.

Let y = total hours Suzette biked.

The equation to solve the question will be:

x + y = 4 ....... i

6.5x + 14y = 44.75 ....... ii

b. x + y = 4 ....... i

6.5x + 14y = 44.75 ....... ii

From equation i, x = 4 - y

Put x = 4-y into equation into equation ii

6.5x + 14y = 44.75

6.5(4 - y) + 14y = 44.75

26 - 6.5y + 14y = 44.75

Collect like terms

-6.5y + 14y = 44.75 - 26

7.5y = 18.75

Therefore, y = 18.75/7.5

y = 2.5

Therefore, she bikes for 2.5 hours

Since x + y = 4

x = 4 - y

x = 4 - 2.5

x = 1.5

She ran for 1.5 hours.

Read related link on:

brainly.com/question/24578032

5 0
3 years ago
Read 2 more answers
Which of the following is true?
kow [346]

Answer:

C.

Step-by-step explanation:

A - Perpendicular lines always touch each other at least once.

B - Parallel lines never touch.

D- Not always true.

C is true. If they are not in the same plane they are skewed lines.

3 0
3 years ago
If you can figure everything out that amazing,but one by one is alright as well​
Kay [80]

Answer:

x=14°

SEE the IMAGE FOR SOLUTION

8 0
3 years ago
What is the Expected value of the probability distribution also called?
Fittoniya [83]

Answer:

The expected value is also known as the expectation, mathematical expectation, mean, average, or first moment.

8 0
3 years ago
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