Combine like terms in the expression. Answer "not possible" if terms cannot be combined.5x - 11xy
A. 32x
B. 55xy
C. not possible
D. 16x2y
Answer: C
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Find Dxy.y = sech-19x
A. - 
B. - 
C. - 
D. - 
Find the product.(9x3y)(-2x6y4)
A. 7x18y4 B. 7x9y5 C. -18x9y5 D. -18x9y4
Solve the problem.A wireless service charges $36.50 for 800 minutes in the primary calling zone, the $0.10 for each additional minute in the calling zone. Calls placed outside of the calling zone cost $0.14 per minute. Suppose a subscriber uses 1078 minute in the calling zone and 38 minutes outside the calling zone. Write a numerical expression that describes the total cost for the month, then calculate the total.
A. 36.5 + 0.10(38) + 0.14(1078 - 800) = $79.22 B. 36.5 + 0.10(1078 - 800) + 0.14(38) = $69.62 C. 36.5 + 0.14(1078 - 800) + 0.14(38) = $45.62 D. 36.5 + 0.10(1078) + 0.14(38) = $149.62
Find the difference using your calculator.-476 - (-3645)
A. 3169 B. -3169 C. 4121 D. -4121