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2 years ago

How do you do this??

Mathematics

2 answers:

lisabon 2012 [21]2 years ago

8 0

Answer:

131.964 cm

Step-by-step explanation:

$C = 2 \pi r = 2 * 3.142 * 21 = 3.142 * 42 = 131.964 \ cm$

Alex777 [14]2 years ago

6 0

The formula for the circumference of a circle = 2 x radius x pi

The radius is given as 21 cm and pi = 3.142

Circumference = 2 x 21 x 3.142 = 131.964 cm

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tatiyna

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Step-by-step explanation:

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Find two coordinate points. Let's use (-2,4) and (0,-4). Based on this, we know that y1 is 4, y2 is -4, x1 is -2, and x2 is 0. Plug these into the formula:

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3 0

3 years ago

Read 2 more answers

What is the period of the graph of y = 5cos(6x – 1) + 3?<br> O A.

evablogger [386]

Step-by-step explanation:

The coefficent of the x variable is b.

The formula for the period is

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Here, b is 6 so we have

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So the period is pi/3, or 60 degrees

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2 years ago

Forty-five percent of the 300 shoppers in a supermarket bought milk. How many of the shoppers in a supermarket bought milk?

Orlov [11]

Turn 45% into a decimal. You get 0.45, because you move the decimal two places to the left.

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3 years ago

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Step-by-step explanation:

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g(-4)=3

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