Solve the equation.
+ 8 = 7
A. {225}
B. {-1}
C. ?
D. {1}
Answer: C
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Find an approximate value for the integral, using the trapezoidal rule with n intervals. Round the answer to the nearest tenth if necessary.
n = 4
A. 690 B. 70 C. 700 D. 770
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 a CAS integration utility to evaluate the triple integral of the given function over the specified solid region.
over the rectangular cube 
A. 
B. 
C. 
D. 
Find the area of a trapezoid with bases 42 cm and 34 cm and height 21 cm.
What will be an ideal response?