1.   Find the value of x. Round to the nearest tenth.
   
    A. 78.8 B. 20.3
    C. 2.1 D. 131.6
    Hint

  2.   Solve . Round measures of sides to the nearest tenth and measures of angles to the nearest degree.
   
    A. A = 72°, b = 4.1, c = 1.3
    B. A = 72°, b = 3.9, c = 4.1
    C. A = 72°, b = 1.3, c = 3.9
    D. A = 72°, b = 1.3, c = 4.1
    Hint

  3.   Find the exact value of sin 405°.
    A. B.
    C. - 1 D.
    Hint

  4.   State the amplitude and the period for y = 2 cos .
    A. amplitude = -2,
period = 180°
B. amplitude = -2,
period = 4
    C. amplitude = 2,
period = 4
D. amplitude = 2 ,
period =
    Hint

  5.   Find the value of sin 87° to the nearest thousandth.
    A. -0.822 B. 0.999
    C. 19.08 D. 0.052
    Hint

  6.   Libby looked out of her airplane window at a 32° angle with respect to the horizontal, and saw the Sears Tower building in Chicago. If the airplane had an altitude of 4000 feet, how far away were they from being directly over Chicago?
    A. 6401 ft. B. 2499 ft.
    C. 1616 ft. D. 9900 ft.
    Hint

  7.   The amount of work done by James and his relative distance to Samuel is inversely related. When James is 6 feet away from Samuel, he can get 13 assignments done per hour. How many assignments can James get done when he is 52 feet away from Samuel?
    A. 112.7 assignments B. 59 assignments
    C. 1.5 assignments D. 24 assignments
    Hint

  8.   Find sin 240° by drawing a reference angle.
    A. B.
    C. D.
    Hint

  9.   Find sin 450° by drawing a reference angle.
    A. B.
    C. D. 1
    Hint

  10.   What is the period for the graph
    A. 45° B. 720°
    C. 180° D. 360°
    Hint



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