Multiply.(x + 7)(x - 7)
A. x2 - 14
B. x2 - 14x - 49
C. x2 - 49
D. x2 + 14x - 49
Answer: C
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Evaluate. Round dollar amounts to the nearest cent and other answers to the nearest thousandth when necessary.P
kn for P = $12,000, n = 6, r = 8%, k = 4
A. $19,042.49 B. $18,922.79 C. $19,301.25 D. $7301.25
Determine between which two consecutive whole numbers each square root lies.
A. 13 and 14 B. 14 and 15 C. 15 and 16 D. 10 and 11
Solve.The number of mosquitoes M(x), in millions, in a certain area depends on the June rainfall x, in inches, according to the function 
What rainfall produces the maximum number of mosquitoes?
A. 9.5 in. B. 19 in. C. 361 in. D. 0 in.
Solve the problem.When an object is dropped to the ground from a height of h meters, the time it takes for the object to reach the ground is given by the equation t = 
, where t is measured in seconds. If an object falls 240.1 meters before it hits the ground, find the time it took for the object to fall.
A. 7 sec B. 49 sec C. 10 sec D. 8 sec