Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. 
C. x - 2
D. x + 2
Answer: A
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Determine whether the indicated ordered pair lies on the graph of the given equation.y = |x|, (-5, 5)
A. Yes B. No
Suppose that y is directly proportional to x. Use the given information to find the constant of proportionality k. Then use y = kx to find y for the given value of x.y = 39 when x = 6;
Find y given x = 12.
A. k = 6.5; y = 78
B. k = 6.5; y = 90
C. k = 234; y = 
D. k = 6.25; y = 75
Find the expected value.A new light bulb has been found to have a 0.02 probability of being defective. A shop owner receives 500 bulbs of this kind. How many of these bulbs are expected to be defective?
A. 20 B. 100 C. 10 D. 500
Solve the problem.The manager of a CD store has found that if the price of a CD is 
then x CDs will be sold. An expression for the total revenue from the sale of x CDs is R(x) = 73x - 
Find the number of CDs that will produce maximum revenue.
A. 272 B. 292 C. 584 D. 332