Simplify the expression:
(15 + 6 −
2
) + (−5
2 − 18 + 6)

-45

Step-by-step explanation:

(15+6-2)+(-52-18+6)

(21-2)+(-70+6)

(19)+-(-64)

19-64

-45

19+-63 or -44

Step-by-step explanation:

when you add the 15 to the 6 its 21-2 is ninteen

s

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