Complete the square for the binomial. Then factor the resulting perfect square trinomial.x2 - 14x
A. 196; x2 - 14x - 196 = (x - 14)2
B. 196; x2 - 14x + 196 = (x - 14)2
C. 49; x2 - 14x - 49 = (x - 7)2
D. 49; x2 - 14x + 49 = (x - 7)2
Answer: D
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Solve for x. Assume that a and b represent positive real numbers.x2 = 100b
A. 
B. 
C. 
D. {-10b, 10b}
Solve the problem.The following points form a quadratic relationship: (1, 5.0), (2, 4.4), (3, 4.3), (4, 4.2), (5, 4.6), (6, 4.8), (7, 5.4), (8, 6.2) . The x-coordinates are the years a particular company has been in operation and the y-coordinates are the profit, in millions, for that year. Find the quadratic function that models the profit in millions as a function of x, the number of years of operation. Round to three decimal places.
A. y = 0.203x2 - 0.945x + 7.098 B. y = - 0.003x2 + 0.145x - 0.892 C. y = 0.099x2 + 1.254x - 3.512 D. y = 0.101x2 - 0.723x + 5.552
Solve the problem. Round your answer to the nearest tenth unless indicated otherwise.A label on a box shows that the box weighs 130 kg. How many pounds is that?
A. 137.8 lb B. 286 lb C. 59 lb D. 330.2 lb
Solve the problem.A convention manager finds that she has $1340, made up of twenties and fifties. She has a total of 49 bills. How many fifty-dollar bills does the manager have?
A. 37 B. 8 C. 12 D. 49