Factor the difference of two squares. Assume that variables represent whole numbers.a2b2 - 4c2
A. (b + 2c)(b - 2c)
B. (a2b + 2c)(ab - 2c)
C. (ab + 2c)(ab - 2c)
D. (abc + 2)(ab - 2)
Answer: C
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Determine if the function is even, odd, or neither.f(x) = 3x2 + 2
A. Odd B. Neither C. Even
If y varies directly as x, write a general formula to describe the variation.y = 0.7 when x = 2.8
A. y = 0.7x B. y = 4x C. y = x - 2.1 D. y = 0.25x
Solve the problem.The volume V of a given mass of gas varies directly as the temperature T and inversely as the pressure P. A measuring device is calibrated to give 
when 
and 
What is the volume on this device when the temperature is 
and the pressure is 
style="vertical-align: -4.0px;" /> A. V = 244.4 in3 B. V = 18.8 in3 C. V = 224.4 in3 D. V = 264.4 in3
Solve the problem.A company manufactures three products. The graph shows the production from 1986 to 1996. In what year did the production of A equal the production of B?
A. 1991 B. 1996 C. 600,000 D. 650,000