For the polynomial, list each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x -intercept.f(x) = 
2(x2 + 7)3
A. - 
, multiplicity 2, touches x-axis
B. 
, multiplicity 2, touches x-axis; 7, multiplicity 3, crosses x-axis
C. - 
, multiplicity 2, crosses x-axis
D. - 
, multiplicity 2, touches x-axis; -7, multiplicity 3, crosses x-axis
Answer: A
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Solve the initial value problem.
= 
, y(0) = -4
A. y = 9 sin-1 x - 4
B. y = 9 sin-1 x
C. y = 9 cos-1 x + 
D. y = 9 cos-1 x - 13
The circle graph shows the results of the student council presidential election. The complete circular area represents 100% of the votes.
The circle graph shows what percent of the vote each person received.How many votes did Ann get?
A. 144 B. 132 C. 216 D. 108
Use a sum-to-product identity to rewrite the expression.cos (8t2) - cos (5t2)
A. -2cos (6.5t2) sin (1.5t2) B. -2sin (6.5t2) cos (1.5t2) C. -2sin (6.5t2) sin (1.5t2) D. -2cos (6.5t2) cos (1.5t2)
Simplify. Assume radicands of square roots are positive.(
)3
A. 
B. 3x2
C. 27x6
D. 9x2