Perform the indicated operation(s). Simplify if possible.
+ 
- 
A. 
B. 
C. 
D. 
Answer: C
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Find an upper bound for the magnitude |E| of the error in the approximation f(x, y) ? L(x, y) at the given point over the given region R.
at 
; R: |x - 1| ? 0.1, |y - 1| ? 0.1, |z - 1| ? 0.1
A. |E| ? 0.21 B. |E| ? 0.188 C. |E| ? 0.225 D. |E| ? 0.175
Find the volume under the surface z = f(x,y) and above the rectangle with the given boundaries.z = 
; 0 ? x ? 1, 1 ? y ? e
A. 
B. 
C. 
D. 
Solve the inequality, then graph the solution.
(x + 6) > 
(x + 6)
A. 
B. (0, ?)
C. 
D. (-?, 0)
Solve the variation problem.The distance that an object falls when it is dropped is directly proportional to the square of the amount of time since it was dropped. An object falls 88.2 meters in 3 seconds. Find the distance the object falls in 
A. 12 meters B. 39.2 meters C. 156.8 meters D. 117.6 meters