Evaluate each expression for the given values a. X+5 for x=-5
b. t 2t-1 for t=10
c. 43 nr 3 for r=5
d. a+ab+b fora=11,b=-8
e. 2 m 3 n 2 for m=2,n=3

answer: do we write it

step-by-step explanation:

answer: it is 8

step-by-step explanation:

you know why its 8

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