Solve.An express train travels 252 miles between two cities. During the first 
of a trip, the train traveled through mountainous terrain. The train traveled 
per hour slower through mountainous terrain than through level terrain. If the total time to travel between the cities was 6 hours, find the speed of the train on level terrain.
A. 62 mph
B. 32 mph
C. 17 mph
D. 47 mph
Answer: D
Mathematics
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Solve the problem.Find the length of the curve y = ln(csc x), ?/3 ? x ? ?/2
A. 1 - ln(
)
B. ln(
+ 1)
C. ln(2
)
D. ln(
)
Mathematics
Provide an appropriate response.For the linear function f(x) = mx + b, f(2) = 8 and f(-6) = 20. Find m and b.
A. m = 
; b = 6
B. m = 
; b = 3
C. m = 
; b = 10
D. m = - 
; b = 11
Mathematics
Determine whether the activity can be used to illustrate the given property.Making a pot of coffee, brushing your teeth, and taking a shower.Does the associative property hold?
A. Yes B. No
Mathematics
Find an equation for the indicated ellipse.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
- 
= 1
Mathematics