The length of arc JM. Use 3.14 for T. Round to the nearest tenth.

We will find the length arc, using the following formula

Therefore, to find the length of an arc we have to multiply the radius of the circle by the central angle in radians.

Let`s identify in this question, who is the radius and the central angle for the arc JM

Therefore, we can calculate:

We conclude that the length of the arc JM is 12.874 miles.

you need to add a picture

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)