Use Descartes' Rule of Signs to determine the possible number of positive and negative real zeros for the function. Then, use a graph to determine the actual number of positive and negative real zeros.P(x) = -6x4 - 6x3 - 4x2 - 5x + 7
A. possible: 0 or 2 pos, 0 or 2 neg
actual: 2 pos, 0 neg
B. possible: 1 pos, 1 or 3 neg
actual: 1 pos, 1 neg
C. possible: 1 pos, 1 neg
actual: 1 pos, 1 neg
D. possible: 1 pos, 1 or 3 neg
actual: 1 pos, 1 neg
Answer: B
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Solve the problem.The average cost of a 4-year college education is projected to be $100,000 in 15 years. How much money should be invested now at 3.5%, compounded quarterly, to provide $100,000 in 15 years?
A. $35,153.96 B. $87,749.93 C. $100,000.00 D. $59,290.78
Perform the indicated operation
Solve the problem.
Use the graph of the polynomial function f to estimate the 
s and to determine whether the leading coefficient is positive or negative.
A. -4, -1, negative B. 4, 1, positive C. 4, 1, negative D. -4, -1, positive
Simplify the radical.
A. 22 B. 64 C. 8 D. not a real number