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Weser17
01.04.2021 •
Mathematics
Line q has an equation of y = 1/3x - 4. Parallel to line q is line r, which passes through the point (-3,9). What is the equation of liner?
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Ответ:
25 meters
Step-by-step explanation:
in this case they give us the information about the lake and that length corresponds to the perimeter.
the perimeter of a circle has the following formula:
p = 2 * pi * r
then r equals:
r = p / pi * 2
replacing we have:
r = 157 / (2 * 3.14)
r = 25
which means that the radius of the lake is 25 meters