F(x) = x + 7
Work out an expression for f-1(x).

If is the inverse of , then

Given , the inverse is such that

Solve for :

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours

step-by-step explanation:

a'(12.5,11.25)

slope=(y1-y2)/(x1-x2)