When two railroad tracks merge, the overlapping portions of the tracks are in the shape of a circular arc. The radius of each are r in feet and the angle theta are related by (x/2) = 2r(sin(theta/2)2. write a formula for x in terms of cos theta

Step-by-step explanation:

Given equation,

           ...... (1)

Since,

Thus,

 ...... (2)

From equation (1) and (2),

Which is the required formula.

if x = 1, then the answer is 3.5

vwhat effect does the word head have on the meaning of this passage?

a. it demonstrates how intelligent he was.

b. it shows he was a favorite of the teachers.

c. it indicates he would be a good preacher.

d. it reveals how self-important he was.

how does the choice of the word head contribute to the passage’s tone?

a. it offers a sense of entitlement.

step-by-step explanation: