Solve for x in the proportion. If possible, reduce the known fraction first.
= 
A. x = 48
B. x = 84
C. x = 28
D. x = 4
Answer: C
Mathematics
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Find the limit.
A. 5 B. 1 C. 0 D. -?
Mathematics
Solve the equation.
- 
= 4
A. 120 B. -120 C. 60 D. -60
Mathematics
Solve the problem.Which of the ordered pairs listed is the only possible solution for the system whose graphs are shown in the viewing window of a graphing calculator?
A. (-16, -7) B. (-20, 12) or (16, 7) C. (16, -7) D. None of the above
Mathematics
Indicate whether the statement is true always, sometimes, or never.A complex number is an imaginary number.
A. Always B. Sometimes C. Never
Mathematics