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Ronch [10]
4 years ago
13

A circle has a circumference of 144π. What is the radius of the circle?

Mathematics
1 answer:
Artist 52 [7]4 years ago
5 0
To find the circumference of a circle you have to multiple the radius by 2 and also by pi. So, to find the radius when given just the circumference, who have to do the reverse operation and divide the circumference by 2 and also by pi to get the answer of 22.92993631, which you could of course round.
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Pease help, thank you
andreyandreev [35.5K]

Answer: -2

=====================================================

Draw a vertical line through 4 on the x axis. This vertical line crosses the parabola at some point (which we'll call point A). Draw a horizontal line from point A to the y axis and note how it lands on y = 12. Therefore the point (4,12) is on this parabola.

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The slope of this line is -2 meaning that the average rate of change from x = 4 to x = 8 is -2.

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