Simplify the exponential expression.
A. x3y3
B. 7x2y2
C. 7x2y3
D. 7x3y3
Answer: D
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Solve the problem.The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 84 seconds are required to make a 3-by-7 enlargement, find the time required for a 6-by-8 enlargement.
A. 288 sec B. 144 sec C. 240 sec D. 192 sec
Verify that 
.
What will be an ideal response?
Find the polynomial P(x) with real coefficients having the specific degree, leading coefficient, and zeros.degree: 6, leading coefficient: 3, zeros: 5, 0 (multiplicity 3), 5 - 3i
A. P(x) = x6 - 15x5 + 84x4 - 170x3 B. P(x) = 3x6 + 45x5 - 252x4 + 510x3 C. P(x) = 3x6 + 45x5 + 252x4 - 510x3 D. P(x) = 3x6 - 45x5 + 252x4 - 510x3
Find the range of the quadratic function.f(x) = -x2 + 10x + 3
A. [28, ?) B. (-?, 5] C. (-?, 28] D. [5, ?)