1.   Find the area of a sector if the central angle measures radians and the radius of the circle is 22 centimeters. Round to the nearest tenth.
    A. 506.8 cm2 B. 1013.7 cm2
    C. 231.1 cm2 D. 253.4 cm2
    Hint

  2.   The diameter of a circle is 18 inches. If a central angle measures 64°, find the length of the intercepted arc.
    A. about 14.6 in. B. about 20.1 in.
    C. about 18.2 in. D. about 10.1 in.
    Hint

  3.   A bicycle wheel is 30 inches in diameter. If the wheel turns at a constant rate of 3 revolutions per second, what is the linear speed in miles per hour of a point on the tire?
    A. about 16.1 mph B. about 19.5 mph
    C. about 18.4 mph D. about 13.7 mph
    Hint

  4.   If a pulley is turned 240° per second and its radius is 4 inches, find its linear velocity in inches per second. Round to the nearest tenth.
    A. 22.3 in./s B. 4.0 in./s
    C. 33.5 in./s D. 16.8 in./s
    Hint

  5.   Find sin 5 by referring to the graph of the sine function.
   
    A. -1 B.
    C. 1 D. 0
    Hint

  6.   Which is not a true statement about the properties of the graph of
y = cos x?
    A. The maximum values are y = 1 and occur when , where n is an integer.
    B. The y-intercept is 1.
    C. The x-intercepts are located at , where n is an integer.
    D. The period is 2.
    Hint

  7.   State the amplitude and period for the function y = -3 sin 3.
    A. -3; B. 3;
    C. 3; D. -3;
    Hint

  8.   Write an equation of the cosine function with amplitude 3 and period 9.
    A. y = ±3 cos 3 B. y = ±3 cos
    C. y = ±3 cos D. y = ±3 cos
    Hint

  9.   Write an equation of a cosine function with amplitude 3, period , phase shift , and vertical shift 2.
    A.
    B.
    C.
    D.
    Hint

  10.   Which is not a property of the graph of y = tan x?
    A. The range is the set of real numbers. B. The x-intercepts are located at n, where n is an integer.
    C. The y-intercept is 0. D. The period is 2.
    Hint

  11.   Write an equation for a tangent function with period , phase shift -, and vertical shift 3.
    A. y = tan + 3 B. y = tan + 3
    C. y = tan + 3 D. y = tan + 3
    Hint

  12.   Find Arcsin .
    A. - B.
    C. D.
    Hint

  13.   Find sin .
    A. - B. 1
    C. -1 D.
    Hint

  14.   Suppose the equation   models a buoy bobbing up and down in the water. The equilibrium point is y = 0. Describe the location of the buoy when t = 0.
    A. 6 units above equilibrium B. 6 units below equilibrium
    C. 0.5 unit above equilibrium D. equilibrium
    Hint

  15.   Suppose the equation models a buoy bobbing up and down in the water. The equilibrium point is y = 0. Describe the location of the buoy when t = 7.
    A. 6 units below equilibrium B. 3 units below equilibrium
    C. 3 units above equilibrium D. 6 units above equilibrium
    Hint

  16.   State the vertical shift and the equation of the midline for
the function y = 3 cos + 4.
    A. -4; y = -4 B. -3; y = -3
    C. 4; y = 4 D. 3; y = 3
    Hint



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