Acertain river floods every year. suppose that the low-water mark is set at 1 and the high-water mark y has distribution function fy (y) = p(y ≤ y) = 1 − 1 y 2 , 1 ≤ y < [infinity].

arc length = 6.63311 ft.

step-by-step explanation:

the formula the arc measure is:

arc length s=2πr(c)/360

where:

c   is the central angle of the arc in degrees

r   is the radius of the arc

π   is pi, approximately 3.142

using the above formula we get

s =

thus we find that arc length of an arc for a circle of radius 20 feet and central angle 19 degrees is

6.63311 feet

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