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) = 
x4(x2 - 3)
A. 0, multiplicity 4, crosses x-axis
B. 0, multiplicity 4, touches x-axis;
, multiplicity 1, crosses x-axis;
-
, multiplicity 1, crosses x-axis
C. 0, multiplicity 4, crosses x-axis;
, multiplicity 1, touches x-axis;
-
, multiplicity 1, touches x-axis
D. 0, multiplicity 4, touches x-axis
Answer: B
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Evaluate the integral.
d?
A. 
+ C
B. ln (1 + e3?) + C
C. 3 ln (1 + e3?) + C
D. 
+ C
You are hiking in a hilly region, and E is your elevation at time t.
?
A: Explain in practical terms the meaning of 
.
?
B: Where might you be when is a large positive number?
?
C: Where might you be when 
?
?
D: Where might you be when is a large negative number?
What will be an ideal response?
The polar coordinates of a point are given. Find the rectangular coordinates of the point.(-7, 120°)
A. 
B. 
C. 
D. 
Find the exact value of the expression. Do not use a calculator.cos [cos-1 (-0.9372)]
A. 0.4686 B. 0.9372 C. -0.9372 D. -0.4686