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Bond [772]
3 years ago
10

A circle has a circumference of 12. It has an arc of length 11.

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
7 0

Answer:

The central angle is 330 degrees

Step-by-step explanation:

The arc length is equal to the circumference time the fractional part of the circle

arc length = circumference * x/360

11 = 12 * x/360

Divide each side by 12

11/12 = 12/12 *x/360

11/12 = x/360

Multiply by 360

11*360/12 = x /360 *360

330 = x

The central angle is 330 degrees

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Step-by-step explanation:

One number is 2 more than 3 times another. Their sum is 14.Find the numbers. 8, 14 5, 17 2, 20 4, 18 10, 12

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2 years ago
What is the center of this circle? <br> What is the radius of this circle?
zimovet [89]

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The center of a circle is the point from which the circumference is equidistant

Step-by-step explanation:

Radius of a circle is a line drawn from the center of the circle to the circumference.

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3 years ago
If you read can read 40 pages in 2 hours, how many pages can you read in 5 hours?
Pavlova-9 [17]
You can read 100 pages in 5 hours.

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3 years ago
Read 2 more answers
special deck of cards has 20 cards. Nine are green, seven are blue, and four are red. When a card is picked, the color of it is
Sever21 [200]

Answer:

Step-by-step explanation:

Given that special deck of cards has 20 cards. Nine are green, seven are blue, and four are red. When a card is picked, the color of it is recorded. An experiment consists of first picking a card and then tossing a coin

A) Sample space will have Green, Head,  or Green, Tail .... Red, head, red, tail

No of elements in sample space = no of colours x no of outcomes in coin toss

= 4x2 = 8

B) A= getting (RT)

P(A) = Prob of getting red card and tail on coin

= P (R) *P(T)

=\frac{4}{20} *\frac{1}{2} \\=\frac{1}{10}

C) B be the event that a green or blue is picked, followed by landing a tail on the coin toss

B = getting green card and tail

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7 0
3 years ago
A tree measured 25 1/2 feet tall. Over the next 7 1/2 years, it grew to be 63 feet tall. During the 7 1/2 years, what was the av
ANEK [815]
<h2>Greetings!</h2>

Answer:

5feet per year

Step-by-step explanation:

We need to find the distance it grew in that 7 1/2 years:

63 - 25 1/2 = 37 1/2

Now to find the average yearly growth we can divide this by 7 1/2:

37.5 ÷ 7.5 = 5

So the yearly rate of growth of the tree is 5f/y


<h2>Hope this helps!</h2>
4 0
3 years ago
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