The point P on the unit circle that corresponds to a real number t is given. Find the indicated trigonometric function.
?Find sin t.
A. 
B. 
C. 
D. 
Answer: C
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Factor the expression completely.
?
?
A. 
B. 
C. 
D. 
Factor completely, or state that the polynomial is prime.9x2 - 12x + 4
A. (3x - 2)(3x + 2) B. (3x - 2)2 C. (9x + 1)(x + 4) D. (3x + 2)2
Use the accompanying graph of a particle moving on a coordinate line with velocity v = f(t) in ft/sec at time t seconds. The axes are marked off at one-unit intervals. Use these terms to describe the motion state: moving forward/backward, increasing/decreasing speed, and resting. Recall that speed = 
. 
Give the interval(s) when the speed of the particle is increasing.
A. (0, 2), (5, 6), (11, 13), and (21, 23) B. (0, 6), (11, 15), and (19, 23) C. (0, 2), (5, 6), and (11, 13) D. (0, 2), (5, 6), and (21, 23)
Solve the problem.A real estate investor is examining a triangular plot of land. She measures each angle of the field. The sum of the first and second angles is 114° more than the measure of the third angle. If the measure of the third angle is subtracted from the measure of the second angle, the result is twice the measure of the first angle. Find the measure of each angle. (Note: The sum of the angles of a triangle is 180°.)
A. First angle is 44°, second angle is 105°, third angle is 31° B. First angle is 42°, second angle is 111°, third angle is 27° C. First angle is 38°, second angle is 109°, third angle is 33° D. First angle is 36°, second angle is 109°, third angle is 31°