Multiply.(2p + 5)(2p - 5)
A. p2 - 25
B. 4p2 + 20p - 25
C. 4p2 - 25
D. 4p2 - 20p - 25
Answer: C
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Suppose you have the following project digraph. (The numbers in parentheses represent hours.)
If we use the priority list F, E, A, D, B, G, C and the priority-list model to schedule this project with two processors, the project timeline is
A. 
B. 
C. 
D. 
E. none of these
Find the domain of the function h.h(x) = 
A. {x| x is a real number and x ? -9 and x ? -7 and x ? 7} B. {x| x is a real number and x ? 9 and x ? -7 and x ? 7 and x ? 0} C. {x| x is a real number and x ? -7 and x ? 7} D. {x| x is a real number and x ? 0}
Determine the order of the matrix.
A. 4 B. 2 × 2 C. 2 D. 1
Solve.In a chemistry class, 7 liters of a 4% silver iodide solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10% solution are needed?
A. 4.5 L B. 7.0 L C. 2.5 L D. 3.5 L