Find the indicated cardinal number.Find n(C × D) given that C = {4, 5, 6} and D = {7, 8, 9, 10}.
A. 7
B. 12
C. 81
D. 27
Answer: B
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Solve the problem.Suppose you want to buy a car. The dealer offers a financing package consisting of a 3.6% APR compounded monthly for a term of four years. Suppose that you want your monthly payments to be at most $500. What is the maximum amount that you should finance? Round your answer to the nearest dollar.
A. $23,525 B. $23,000 C. $22,330 D. $22,321 E. $22,500
State if the vectors a and b are perpendicular, parallel, or neither. If a and b are parallel, state whether they point in the same direction or in opposite directions.a = 
, b = 
A. Parallel, same direction B. Parallel, opposite directions C. Perpendicular D. Neither
Find an equation of the line that has the given slope and contains the given point.m = - 
, (2, 2)
A. y = 
x - 
B. y = - 
x + 
C. y = - 
x - 
D. y = - 
x - 
Factor.49x2 - 28x + 4
A. (7x - 2)2 B. Prime C. (7x + 2)2 D. (7x - 2)(7x + 2)