Evaluate the expression for the given value or values.-9x, for x = -7
A. -63
B. -
C. 
D. 63
Answer: D
Mathematics
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Determine the absolute value of the complex number.z = -9 - 6i
A. i
B. 3
C. 3
D. i
Mathematics
Express the sum using summation notation. Use 1 as the lower limit of summation and i for the index of summation.3 + 6 + 9 + . . . + 27
A. 
B. 
C. 
D. 
Mathematics
Find the sum.-10.9 + (-14.6)
A. -25.5 B. -3.7 C. 3.7 D. 25.5
Mathematics
Solve the problem.A certain store has a fax machine available for use by its customers. The store charges $1.85 to send the first page and $0.50 for each subsequent page. Use an inequality to find the maximum number of pages that can be faxed for $4.85
A. at most 3 pages B. at most 7 pages C. at most 10 pages D. at most 43 pages
Mathematics