Express the following using negative exponents.
A. (-1)-a
B. a-1
C. 1-a
D. a
Answer: B
Mathematics
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Sketch the graph of the function.y = xe-x/2
A. 
B. 
C. 
D. 
Mathematics
Find the part.30% of 400 dorm rooms
A. 12 dorm rooms B. 1.2 dorm rooms C. 120 dorm rooms D. 1200 dorm rooms
Mathematics
List the intercepts for the graph of the equation.16x2 + y2 = 16
A. (-4, 0), (0, -1), (0, 1), (4, 0) B. (-1, 0), (0, -4), (0, 4), (1, 0) C. (-16, 0), (0, -1), (0, 1), (16, 0) D. (-1, 0), (0, -16), (0, 16), (1, 0)
Mathematics
Solve. Simplify the answer.The total length of a bicycle race is 
of a mile. Chloe has completed 
of a mile. How much does she have left to complete?
A. 
mi
B. 
mi
C. 
mi
D. 
mi
Mathematics