Simplify the expression.x2y-4
A. x2y4
B. 
C. 
D. x2y12
Answer: B
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Use DeMorgan's laws or a truth table to determine whether the two statements are equivalent.(p ? q) ? r, p ? (q ? r)
A. Equivalent B. Not equivalent
Write an equation of the line passing through the given points.(3, 15) and (4, 17)
A. y = 
x + 
B. y = - 
x + 
C. y = -2x + 21
D. y = 2x + 9
Find the exact value of the following expression without using a calculator.cos 30°
A. 
B. 
C. 
D. 
As part of a quality-control program, the chess sets manufactured by Jones Brothers are subjected to a final inspection before packing. The rate of increase in the number of sets checked per hour by an inspector t hours into the 8 A.M. to 10 morning shift is approximately
?
?
How many sets does the average inspector check during a morning shift? (Hint: 
.)
?
__________ sets
Fill in the blank(s) with the appropriate word(s).