The angle of elevation to the top of a building is found to be 40° from the ground at a distance of 650 feet from the base of the building. using this information, which expression below could be used to calculate the height of the building?

Which equation matches the graph shown ?

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).