Use the properties of summation notation to find the sum.
A. 40
B. 20
C. 136
D. 10
Answer: A
Mathematics
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Solve.Dave can hike on level ground 3 miles an hour faster than he can on uphill terrain. Yesterday, he hiked 37 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. 7
mph
D. 7
mph
Mathematics
Follow the order of operations to work the problem.-12 - (-2 - 21) - 15
A. -4 B. 50 C. -8 D. 26
Mathematics
Write an inequality using the variable x that corresponds to the set graphed on the number line.
A. -5 < x < -1 B. -5 ? x ? -1 C. -5 ? x < -1 D. -5 < x ? -1
Mathematics
Write the partial fraction decomposition of the rational expression.
A. 
+ 
+ 
B. 
+ 
+ 
C. 
+ 
+ 
D. 
+ 
+ 
Mathematics