In 2018, there were z zebra mussels in a section of a river. In 2019, there were z cubed zebra mussels in that same section. There were 729 zebra mussels in 2019. How many zebra mussels were there in 2018?

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step-by-step explanation:

ez do it yourself lazy

teleportation

step-by-step explanation:

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