Aline through the origin has a slope equal to two. rotate this line about the origin by the angle (4/5,3/5). what is the slope of the resulting line? the answer is -11/2 but i dont know how

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)

Which equation can be solved to find x the measure of jk in the apex