Simplify. Assume that variables can represent any real number.
A. 2y + 5
B. -2y - 5
C. ?2y + 5?
D. 2?y? + 5
Answer: C
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Find the average value of 
over the given region.
+ z2 over the rectangular solid in the first octant bounded by the coordinate planes and the planes 
, 
, 
A. 
B. 
C. 
D. 
Solve the problem.During one year 40 new employees began work at Daniel's Manufacturing Company and 17 employees left. At the beginning of the year there were 259 employees. What was the number of employees at the end of the year?
A. 282 employees B. 299 employees C. 202 employees D. 316 employees
Determine whether the equation has no solution, one solution, or infinitely many solutions.16k - 60 = 4(4k - 16)
A. One solution B. No solutions C. Infinitely many solutions
Solve the equation exactly in the complex number system.x3 + 4x2 - 2x - 8 = 0
A. x = -
, x = ±
B. x = -
, x = ±2
C. x = -4, x = ±
D. x = -4, x = ±2