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 120 seconds are required to make a 3-by-5 enlargement, find the time required for a 6-by-8 enlargement.
A. 384 sec
B. 480 sec
C. 432 sec
D. 336 sec
Answer: A
Mathematics
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Evaluate the polynomial with the given replacement value.-7x2 + 10x + 8, x = 2
A. -4 B. 14 C. 0 D. -10
Mathematics
Locate the fraction on the number line.3
A.
3
B.
3 |
C.
3
D.
3
Mathematics
Simplify the expression, and combine like terms.5(5a + 9b) - (7a - 3b)
A. 32a + 48b B. 18a + 12b C. 18a + 42b D. 18a + 48b
Mathematics
Solve the compound inequality.5x - 2 > 13 or 5 - 3(x - 2) > 3 - 2x
A. x > 3 B. x < 3 C. All real numbers D. No solution
Mathematics