Simplify. Assume that variables can represent any value.
A. (z - 5)2
B. 
C. 
- 5
D. 
- 5
Answer: B
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Use the graph of the function f(x) to locate the local extrema and identify the intervals where the function is concave up and concave down.
A. Local minimum at x = 3 ; local maximum at x = -3 ; concave up on (-?, -3) and (3, ?); concave down on (-3, 3) B. Local minimum at x = 3 ; local maximum at x = -3 ; concave up on (0, ?); concave down on (-?, 0) C. Local minimum at x = 3 ; local maximum at x = -3 ; concave down on (0, ?); concave up on (-?, 0) D. Local minimum at x = 3 ; local maximum at x = -3 ; concave down on (-?, -3) and (3, ?); concave up on (-3, 3)
Use areas to evaluate the integrals.
dx, b > 0
A. 
B. 
C. 
D. 
A vector v has initial point P and terminal point Q. Find the magnitude of 
.P(-5, 11), Q(10, -14)
A. 850
B. 5
C. 5
D. -10
Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. 8 
- 3xy 
A. 2x2y2
B. 5xy3
C. 5x2y3
D. 2 xy2