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3 years ago

A circle has a radius of 10. An arc in this circle

Mathematics

1 answer:

emmasim [6.3K]3 years ago

4 0

Answer: The answer is 20 pi over 5

Step-by-step explanation:

You start by finding the circumference which you would get 20 pi by doing 2 times pi times your radius which is 10 then you find the fraction of the circle using the central angle which is 1/5 then you multiply 1/5 by 20 pi which you would put over 1 which then gives you 20 pi over 5

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Well, I have to write 20 words, so... I think this is enough.

Varvara68 [4.7K]

<h3>Answer: Choice D</h3><h3>m = n</h3><h3>b = sqrt(pi)*a</h3>

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Explanation:

Each circle has a radius of 'a'. So r = a.

The area of each circle is pi*r^2 = pi*a^2

The area of each square with side length b is b^2

The two stacks have the same volume only when the circle area is equal to the square area, so whenever pi*a^2 = b^2 is true.

Solving for b leads to b = sqrt(pi*a^2) = sqrt(pi)*a

The stacks must also be the same height for the volumes to be the same, so m = n as well.

6 0

3 years ago

Skylar is filling a barrel with water. The graph shows the relationship between time in minutes and the gallons of water in the

lisov135 [29]

Answer:

$t>15$ will be inequality which shows the times there will be more than 10 gallons in the barrel.

Step-by-step explanation:

To determine:

Write an inequality showing the times there will be more than 10 gallons in the barrel.

Information Fetching and Solution Steps:

Skylar is filling a barrel with water.

The graph shows the relationship between time in minutes and the gallons of water in the barrel.

As the questions asks to determine the inequality showing the times there will be more than 10 gallons in the barrel.

For inequalities with 'more than', we use the 'greater than' symbol.

The graph shows that at time 15 minutes, the number of gallons of water is being shown as 10. As we have to determine the inequality for the time there will be more than 10 gallons in the barrel. So, time must be greater than 15 when there will be more than 10 gallons in the barrel.

If time is represented by 't', then the inequality showing the times there will be more than 10 gallons in the barrel will be:

$t>15$

Therefore, $t>15$ will be inequality which shows the times there will be more than 10 gallons in the barrel.

4 0

4 years ago

8* x + y + y; use x=9, and y = 10

katrin [286]

Answer:

Step-by-step explanation:

8* x + y + y

Where

x=9, and y = 10

Solution=8×9+10+10

=72+20

=92.

So the answer is 92

8 0

3 years ago

Read 2 more answers

What is the frequency of the function y = 3sin2x

antiseptic1488 [7]

Answer:

d. None of the above.

Step-by-step explanation:

The period is the change in x required to make a change of 2π in the argument to the sine function:

2x = 2π

x = π

The frequency is the reciprocal of the period, so is 1/π. There are no matching answer choices.

7 0

3 years ago

A cafeteria purchases milk from one of three providers each week, depending on what other items need to be purchased. The probab

Ivanshal [37]

Answer:

The cafeteria should budget $2.90 on average for one gallon of milk.

Step-by-step explanation:

5 0

3 years ago