Find the exact value of the expression.
A. -2
B. - 
C. -
D. - 
Answer: D
Mathematics
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Graph the function f(x) over the given interval. Partition the interval into 4 subintervals of equal length. Then add to your sketch the rectangles associated with the Riemann sum 
, using the indicated point in the kth subinterval for ck.f(x) = x2 - 1, [0, 8], left-hand endpoint
A. 
B. 
C. 
D. 
Mathematics
Translate to a proportion and solve. 80 is what percent of 160?
A. 200% B. 100% C. 40% D. 50%
Mathematics
Round as indicated.
to the nearest million
A. 
B. 
C. 
D. 
Mathematics
Graph the system of inequalities.
A. 
B. 
C. 
D. 
Mathematics