Simplify the expression using the order of operations.
? -16 ÷ (-4)
A. -16
B. 16
C. 256
D. -256
Answer: B
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Determine whether or not the set is well defined.{x | x is a four-year college in Utah}
A. Well defined B. Not well defined
Simplify the difference quotients 
and 
for the following function. Rationalize the numerator when necessary.f(x) = 4x3
A. 4x2 + 4xh + 4h2; 4x2 + 12ax + 12a2 B. 12x2 - 12x - 4h; 4x2 - 4ax - 4a2 C. 4x2 + 4xh + 4h2; 12x2 + 12ax + 12a2 D. 12x2 + 12xh + 4h2; 4x2 + 4ax + 4a2
Suppose you have the following project digraph. (The numbers in parentheses represent hours.)
Consider the following timeline using two processors.
A. This timeline is an optimal schedule. B. This is the timeline one gets using the critical-path algorithm. C. This is the timeline one gets using the decreasing-time algorithm. D. This timeline is an illegal schedule. E. none of these
Calculate 
.v = 3i - 9j
A. 6
B. 3
C. 90
D. 6