Let z1 = 15(cos(90°) + i sin(90°)) and z2 = 3(cos(10°) + i sin(10°)). From the drop-down menus, explain the transformation of z1 to form StartFraction z 1 Over z 2 EndFraction.

The quotient of StartFraction z 1 Over z 2 EndFraction is (cos(°) + i sin(°).

z1 is scaled by a factor of and then rotated degrees clockwise.

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