Add.-7 + (-4)
A. -11
B. -10
C. -3
D. 10
Answer: A
Mathematics
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Find the indicated one-sided limit.
?
?
A. 0 B. 1 C. 2 D. -1 E. -2
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Simplify.-(-2)
A. 0 B. -3 C. 2 D. -2
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?Compare dy and ?y for 
at ?x? = 1 with dx = -0.01. Give your answers to four decimal places.
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics
Solve the problem.A freight train leaves a station traveling at 32 km/h. Two hours later, a passenger train leaves the same station traveling in the same direction at 52 km/h. How long does it takes the passenger train to catch up to the freight train?
A. 5.2 hr B. 2.2 hr C. 3.2 hr D. 4.2 hr
Mathematics