Simplify the expression using the imaginary unit i.
A. -12i
B. 12
C. 12i
D. -12
Answer: C
Mathematics
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Subtract the fractions below, and express the answer in its lowest terms.
?
?
A.
B.
C.
D.
E.
none of these
Mathematics
Calculate the arc length of the indicated portion of the curve r(t).r(t) = (7cos3 8t)j + (7sin3 8t)k; ? ? t ?
?
A.
B.
C. 0
D. 21
Mathematics
Solve the problem. Round to the nearest cent.Don sells real estate and receives a commission of $930. If his commission rate is 5% of the seller's net pay, what was the seller's net pay?
A. $93,000.00 B. $18,600.00 C. $22,320.00 D. $9300.00
Mathematics
The following graph shows the monthly sales for Big "D" Sales during 2000 and 2001. Use the graph to solve the problem.What was the total increase in sales from 2000 to 2001?
A. $22,000 B. $1,342,000 C. $12,000 D. $182,000
Mathematics