Solve the problem. Round your answer to two decimal places.The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 40 seconds are required to make a 5-by-4 enlargement, find the time required for a 6-by-5 enlargement.
A. 30 sec
B. 60 sec
C. 90 sec
D. 120 sec
Answer: B
Mathematics
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Multiply.-2002(0.7007)
A. -1402.8014 B. -141.5414 C. -1541.54 D. -1374.7454
Mathematics
Find sum of the pair of complex numbers.2i, 5i
A. 5 + 2i B. 7 C. 2 + 5i D. 7i
Mathematics
Evaluate the expression.
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Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the problem.Given f(x) = x2 - 5x - 7, find f(0).
A. 7 B. 0 C. -7 D. 49
Mathematics