Find the fourth roots of 81(cos 320° + i sin 320° ). write the answer in trigonometric form.

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?

If angle b measures 25°, what is the approximate perimeter of the triangle below? 10.3 units 11.8 units 22.1 units 25.2 units