To make sure the machines in the factory run smoothly, the mechanics need to add-1/5 liter of oil to the machine every Monday. One Monday, a mechanic can only find 12 liters of oil in the storage. Is there enough for 65 machines?

jbouvoubjublo

Step-by-step explanation:

i need points

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1

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