Solve by the method specified.Substitution methodx - 7y = 31-2x - 8y = 48
A. (-5, -4)
B. (-4, -5)
C. (4, -4)
D. (-5, -5)
Answer: B
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Use a truth table to determine whether the argument is valid.p ? ~q
p ? q
A. Valid B. Invalid
Find the constant term to be added to the expression to form a perfect square trinomial.x2 + 8x
A. 64 B. 16 C. 0 D. -16
Complete the table. Then determine the x-intercept and y-intercept for the graph of the equation.x - y = 8 
A. 
x-intercept: -8; y-intercept: 8
B. 
x-intercept: 8; y-intercept: 8
C. 
x-intercept: 8; y-intercept: -8
D. 
x-intercept: -8; y-intercept: -8
Use Bayes' rule to find the indicated probability.Two shipments of components were received by a factory and stored in two separate bins. Shipment I has 2% of its contents defective, while shipment II has 5% of its contents defective. If it is equally likely an employee will go to either bin and select a component randomly, what is the probability that a defective component came from shipment II?
A. 0.714 B. 0.222 C. 0.5 D. 0.2