Solve the linear inequality.11x - 3 ? 9x - 9
A. x ? -3
B. r ? 3
C. x ? 3
D. r ? -3
Answer: D
Mathematics
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Factor the trinomial by grouping.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Solve.Dave can hike on level ground 3 miles an hour faster than he can on uphill terrain. Yesterday, he hiked 39 miles, spending 2 hours on level ground and 5 hours on uphill terrain. Find his average speed on level ground.
A. 5
mph
B. 4
mph
C. 8
mph
D. 7
mph
Mathematics
Solve.
- 
= 
A. 
B. {6}
C. 
D. 
Mathematics
Find the open interval(s) where the function is changing as requested.Increasing; f(x) = 
A. (0, ?) B. (1, ?) C. (-?, 1) D. (-?, 0)
Mathematics