Students are traveling in two cars to a football game 135 miles away. The first car leaves on time and travels at an average speed of 46 miles per hour.The second car starts 
hour later and travels at an average speed of 56 miles per hour. How long will it take the second car to catch up to the first car?
?
A. 0.36 hours after the first car leaves.
B. 3.80 hours after the first car leaves.
C. 2.80 hours after the first car leaves.
D. 4.80 hours after the first car leaves.
E. 6.80 hours after the first car leaves.
Answer: C
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Solve the problem.Maria, Daniel, Stephanie, Michael, Elena, Tyler, Sue, and Dimitri have reserved eight seats in a row at the theater, starting at an aisle seat. In how many ways can they arrange themselves if Maria and Daniel are to sit next to each other?
A. 1440 B. 5040 C. 10,080 D. 11,520
Find all the second partial derivatives.f(x, y) = ln (x2y - x)
A. 
= 
; 
= - 
; 
= 
= - 
B. 
= 
; 
= 
; 
= 
= 
C. 
= 
; 
= - 
; 
= 
= - 
D. 
= 
; 
= - 
; 
= 
= - 
Match the inequality with its graph.3x + 5y ? 15
A. 
B. 
C. 
D. 
Evaluate the integral.