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Mamont248 [21]
3 years ago
14

The radius of is circle is 3 kilometers. what is the length of a 180 arc?

Mathematics
1 answer:
NeX [460]3 years ago
8 0

Answer:

9.43km

Step-by-step explanation:

Length of an arc = 2πr(Ф/360)= 2 x 22/7 x 3 x (180/360)

2 x22/7 x 3 x 1/2 = 22/7 x 3 = 66/7 = 9.42857142857≈9.43

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Answer:

Blue cars, B = 63 cars

Step-by-step explanation:

Let the blue cars be B.

Let the red cars be R.

Given the following data;

Ratio of B:R = 9:7 = 9 + 7 = 16

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To find the number of blue cars;

First of all, we would determine the total number of cars using the expression;

R = 7/16 * x = 49

7x = 49 * 16

7x = 784

x = 112 cars

Now, we can find the number of blue cars;

B = 9/16 * 112

B = 1008/16

Blue cars, B = 63 cars

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3 years ago
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Answer: The answer should be 0.125

Step-by-step explanation:

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3 years ago
The base of a lamp is solid glass in the shape of a square prism. Each side of the square measures 5 in. If 300 in. of
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Step-by-step explanation:

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3 years ago
the 90 members of a service Club had the opportunity to vote for a club officers on Tuesday or Wednesday 3/5 of the members vote
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For this problem, it is really important to find who voted on Tuesday first.
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6 0
3 years ago
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