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Otrada [13]
3 years ago
9

The equation of a circle is given. Find the circumference of a circle. Write the circumference in terms of pi.

Mathematics
1 answer:
sattari [20]3 years ago
3 0
C=2πr and x^2+y^2=r^2
r=4 because of the equation (16)^1/2 is 4
C=8π 
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What is the equation in point-slope form of the line passing through (4, 0) and (2, 6)? (5 points) y = 4x − 2 y = 2x − 4 y = −3(
DIA [1.3K]

For this case we have that by definition, the point-slope equation of a line is given by:

y-y_ {0} = m (x-x_ {0})

We have the following points:

(x_ {1}, y_ {1}) :( 2,6)\\(x_ {2}, y_ {2}) :( 4,0)\\m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {0-6} {4-2} = \frac {-6} {2} = -3

We chose a point:

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Finally, the equation is: y = -3 (x-4)

Answer:

OPTION C

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