The graph and equation of a polynomial f(x) are given. Determine the number of real zeros and the number of imaginary zeros.f(x) = 3x5 + 10x3 + 15x + 19
A. One real zero; two imaginary zeros
B. One real zero; four imaginary zeros
C. Two real zeros; three imaginary zeros
D. Two real zeros; no imaginary zeros
Answer: B
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Solve the problem.On our moon, the acceleration of gravity is -1.6 m/sec2. If a rock is dropped into a crevasse, how fast will it be going just before it hits bottom 45 seconds later?
A. -36 m/sec B. 3240 m/sec C. 72 m/sec D. -72 m/sec
Express in terms of i.
A. 5i
B. -5i
C. ±5
D. -i
Evaluate.82 - 4 ? 9
A. 28 B. 144 C. 540 D. 288
Solve the problem.Ten students in a graduate program were randomly selected. Their grade point averages (GPAs) when they entered the program were between 3.5 and 4.0. The following data were obtained regarding their GPAs on entering the program versus their current GPAs. By using linear regression, the following function is obtained: 
where x is entering GPA and y is current GPA. Use this function to predict current GPA of a student whose entering GPA is 3.0. Round to the nearest hundredth. Entering GPA Current GPA 3.53.63.83.73.63.93.63.63.53.93.93.84.03.73.93.93.53.83.74.0
A. 3.76 B. 3.27 C. 3.56 D. 3.38