Simplify. If an expression does not represent a real number, state this.-
A. -6
B. -36
C. 10.645
D. not a real number
Answer: A
Mathematics
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Evaluate the sum.
A. 20 B. 30 C. 50 D. 55
Mathematics
Express the sum using summation notation. Use 1 as the lower limit of summation and i for the index of summation.3 + 12 + 27 + . . . + 75
A. 
B. 
C. 
D. 
Mathematics
Evaluate the expression.
? 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.0.0062 of all products produced at a certain factory contain defects. Express this decimal as a percent.
A. 0.62% B. 6.2% C. 0.062 D. 62%
Mathematics