Evaluate the expression or indicate that the root is not a real number.
A. 5
B. 25
C. 7
D. 
Answer: A
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Find the exact value in degrees.sin-1 
A. 30° B. 45° C. 60° D. 330°
Graph the function by first finding the relative extrema.f(x) = 2x2 + 4x + 1
A. 
B. 
C. 
D. 
Answer the question, concerning the use of substitution in integration.If we use u = x + e as a substitution to find 
then which of the following would be a correct result?
A. 
B. 
C. 
D. None of the above
Solve the problem.A ball is thrown downward with an initial velocity of 28 meters per second from a cliff that is 
high. The height of the ball is given by the quadratic equation 
where h is in meters and t is the time in seconds since the ball was thrown. After how many seconds will the height of the ball be 40 meters?. Round your answer to the nearest tenth of a second.
A. 3.1 sec B. 3.0 sec C. 4.0 sec D. 2.9 sec