Solve.The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 72 seconds are required to make a 3-by-4 enlargement, find the time required for a 4-by-8 enlargement.

A. 160 sec
B. 256 sec
C. 224 sec
D. 192 sec


Answer: D

Mathematics

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Determine whether the given geometric series is convergent or divergent, and find the sum if it is convergent. +  +  +  + ...

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Subtract the polynomials.(7x4 + 4x6 + 4 + 8x5) - (-8 - 2x5 + 2x6 + 3x4)

A. 2x6 + 6x5 + 10x4 - 4 B. 2x6 + 10x5 + 4x4 + 12 C. 6x6 + 6x5 + 10x4 - 4 D. 6x6 + 6x5 + 10x4 + 12

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Plot the ordered pairs on the rectangular coordinate system provided.A(2, 6), B(3, -3)

A.

B.

C.

D.

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Use the circle graph to solve the problem.The circle graph below gives the number of students in the residence halls at the state university.Which residence hall has the third lowest number of students?

A. Brown B. Evans C. Carver D. Dodge

Mathematics