Solve.The time T necessary to make an enlargement of a negative varies directly as the area A of the enlargement. If 96 seconds are required to make a 3-by-4 in. enlargement, find the time required for a 7-by-6 in. enlargement.
A. 420 sec
B. 336 sec
C. 294 sec
D. 378 sec
Answer: B
Mathematics
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Simplify.
A. 6
B. 19
C. 11
D. 66
Mathematics
Factor out the greatest common factor.5t2 - 20t - 10
A. 5t(t2 - 4t - 2) B. 5(t2 - 20t - 10) C. 5(t2 - 15t - 5) D. 5(t2 - 4t - 2)
Mathematics
Perform the indicated operations.(-2x3 - 5x2) - (-6x3 + 9x2 - 7)
A. -8x3 + 4x2 + 7 B. 4x3 - 14x2 - 7 C. -8x3 + 4x2 - 7 D. 4x3 - 14x2 + 7
Mathematics
Find the value of the constant k that makes the function continuous.h(x) = 
A. k = 52 B. k = 0 C. k = -19 D. k = 4
Mathematics