Inverse Functions — Unit test Answers

Find cos–10.9455 to the nearest degree

Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.The cosine of the complimentary angle to 58°

Which of the following statements is true?

A small plane is 4 miles by land away from the airport. The angle of elevation from the airport to the airplane is ? What is the altitude of the plane? Round your answer to the nearest tenth of a mile.

Evaluate the function requested. Write your answer as a fraction in lowest terms. Find sin A. a. c. b. d. Please select the best answer from the choices provided

A surveyor is standing 550 feet from the base of a redwood tree in the California Redwood Forest. The tree is 362 feet tall. Sketch a drawing that models the situation and then find the angle of elevation of the top of the tree from the spot where the surveyor is standing.

a. c. b. d. No triangle satisfies the given conditions. Please select the best answer from the choices provided

Triangle Q R S is shown. Angle Q R S is a right angle. Angle R S Q is 30 degrees and angle S Q R is 60 degrees. The length of R S is 5 StartRoot 3 EndRoot, the length of S Q is 10, and the length of R Q is 5.

When solving for x, the sine of 33º is used. What other angle and trigonometric function could be used to solve for x?

Solve the right triangle shown in the figure. Remember, exact lengths can be approximated on a calculator. For example, . a. c. b. d. Please select the best answer from the choices provided

Evaluate the function requested. Write your answer as a fraction in lowest terms. Find cos B. a. c. b. d. Please select the best answer from the choices provided

Using a scientific calculator or graphing calculator find the inverse tangent of the ratio. Round to the nearest degree.

Triangle A B C is shown. Angle A B C is a right angle. Angle B C A is 22 degrees and angle C A B is 68 degrees.

Triangles A B C and X Y Z are shown. Angles A B C and X Y Z are right angles. Angles B A C and Y X Z are congruent. The length of A B is 5, the length of A C is 13, and the length of B C is 12.

When solving for x, the sine of 44º is used. What other angle and trigonometric function could be used to solve for x?