Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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A function shows constant percentage growth. Which of the following may be the graph of this function? ?
A. ?
B. ?
C. ?
D. ?
Mathematics
For the smooth curve r(t), find the parametric equations for the line that is tangent to r at the given parameter value 
r(t) = (5 tan t)i - (9 sin t)j + (8 cos2 t)k ; t0 = 
A. x = 10 + 5t, y = -
- 
t, z= -8 + 4t
B. x = 5 + 10t, y = -
- 
t, z = 8 - 8t
C. x = 5 + 10t, y = -
+ 
t, z = 4 + 8t
D. x = 5 + 10t, y = -
- 
t, z = 4 - 8t
Mathematics
Indicate whether the function is one-to-one.C = {(-2, -9), (9, 2), (4, 4), (-4, -4)}
A. Yes B. No
Mathematics
Evaluate the function.Given f(x) = x2 - 5x - 1, find f(-2).
A. 15 B. -7 C. 13 D. -5
Mathematics