Provide an appropriate response.The solution of 2x2 - 13x + 6 ? 0 is
A. x ? 
, x ? 6.
B. x ? 6.
C. x ? 
.
D. 
? x ? 6.
E. no solution
Answer: D
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Find the expected value.In a large casino, the house wins on one of its games with a probability of 51%. All bets in the game are 1 : 1 . If you win, you gain the amount you bet; if you lose, you lose the amount you bet. What is the expected value to the player of a single game?
A. $0.020 B. -$0.020 C. -$0.510 D. -$0.010
Use the distributive property to multiply. Then, if possible, simplify the resulting expression.3(7 + m)
A. 21m B. 21 + m C. 21 + 7m D. 21 + 3m
Solve the problem.An object is thrown upward from the top of a 
building with an initial velocity of 48 feet per second. Solve the equation 
to find the time t (in seconds) at which the object hits the ground.
A. 160 sec B. 2 sec C. 5 sec D. -2 sec
Solve the problem.A company that produces appliances has found that revenue from the sales of the appliances is $50 per appliance, less sales costs of $250. Production costs are $400, plus $40 per appliance. Profit (P) is given by revenue (R) less cost (C), so the company must find the production level x that makes P > 0, that is, R - C > 0.(a) Write an expression for revenue, R, letting x represent the production level (number of appliances to be produced.)(b) Write an expression for production costs C in terms of x.(c) Write an expression for profit P, and then solve the inequality P > 0.(d) Describe the solution in terms of the problem.
A. (a) R = 50x - 250;
(b) C = 400 + 40x;
(c) P = (50x - 250) - (400 + 40x) = 5x - 650; 5x > 650; x > 130
(d) To make a profit, more than 130 appliances must be produced and sold.
B. (a) R = 50x + 250;
(b) C = 400 - 40x;
(c) P = (50x + 250) - (400 - 40x) = 10x - 150; 10x > 150; x > 15
(d) To make a profit, more than 15 appliances must be produced and sold.
C. (a) R = 50x - 250;
(b) C = 400 +