4. The formula d=15t describes the distance din miles that Peter can ride 25 poin
his bike in t hours. How far does he ride in 3 hours? *

45 miles

Step-by-step explanation:

given that

d = 15t , where

d = distance rode

t = time in hour

hence in 3 hours, t = 3  (substitute this back into the equation)

d = 15t

d = 15(3)

d = 45 miles

its c or d   take a lucky guess my dude

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