Simplify
5+n+(15-2).

n= -17

Step-by-step explanation:

Simplifying

5 + n + (15 + -2) = 0

Combine like terms: 15 + -2 = 13

5 + n + (13) = 0

5 + n + 13 = 0

Reorder the terms:

5 + 13 + n = 0

Combine like terms: 5 + 13 = 18

18 + n = 0

Solving

18 + n = 0

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-18' to each side of the equation.

18 + -18 + n = 0 + -18

Combine like terms: 18 + -18 = 0

0 + n = 0 + -18

n = 0 + -18

Combine like terms: 0 + -18 = -18

n = -18

Simplifying

n = -18

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