Find the sum using the formulas for the sums of powers of integers.
?
?
A. -784
B. -3,136
C. 4,200
D. 5,600
E. -6,132
Answer: E
Mathematics
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Simplify the following rational expression.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
Perform the indicated operations on a calculator. Express the result with the proper accuracy and precision. Assume that all numbers are approximate.7.12(13.26)
A. 94.41 B. 94.4112 C. 94.4 D. 90
Mathematics
Solve the system of equations by graphing the equations on the same set of axes.
A. (-1, 2) B. (-1, -2) C. (-2, -1) D. no solution
Mathematics
Stephan kept a record of his personal expenses for one week and organized them in this table:
What is the ratio of the amount for the CD to the amount for the gift?
A. 
B. 
C. 
D. 
Mathematics