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3 years ago

Find the area of the circle with the given radius or diameter. Use pi = 3.14. d = 13 A=?

2 answers:

5 0

Hello!

The formula for finding area of a circle is: π · r²

Diameter is 2x the radius. To find the radius when the diameter is given, divide the diameter by 2.

The diameter is 13. 13 ÷ 2 = 6.5

r = 6.5
6.5² = 6.5 × 6.5 = 42.25

π = 3.14

Multiply 3.14 by 42.25 to get the area

3.14 × 42.25 = 132.665

<em>The area of the circle is 132.665 sq. units, which is the last option.</em>

hichkok12 [17]3 years ago

4 0

The answer is 132.665

6.5 × 6.5 × 3.14 = 132.665

Hope this helped!

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olga_2 [115]

Answer:

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Use slope formula and plug in your numbers: $m = \frac{-18-6}{-2-4 }$
Solve for slope $m = 4$
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Note: When given two points you only need to pick one for the point-slope formula! Best to choose the positive one so you don't have to deal with the negatives!

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3 years ago

The equation v/2 -21=-15 is solved in several steps below.

Arada [10]

Answer:

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3 years ago

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zhuklara [117]

Answer:

B) 43.82 feet/sec

Step-by-step explanation:

Fill in the number and evaluate:

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Of course, √(64h) can be simplified to 8√h. You know that √30 lies between 5 and 6, so the velocity lies between 8·5 = 40 and 8·6 = 48. There is only one answer choice in that range.

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3 years ago

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3 years ago

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scoundrel [369]

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3 years ago