Express in terms of i.- 
A. -3
B. 3i
C. -3i
D. 3
Answer: C
Mathematics
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Determine whether the given ordered pair is a solution to the given system of equations.
; 
A. Yes B. No
Mathematics
Find the mean for the sequence of numbers.11, 7, 5, 14, 9, 4, 17
A. 
B. 10
C. 
D. 
Mathematics
Use the appropriate sum or difference identity to write the given expression as a function of x alone.tan (x - 2?)
A. tan x
B. 
C. -tan x
D. 
Mathematics
Solve. If necessary, round percents to the nearest whole.In a recent survey of 900 people, 18 said that their favorite color of car was blue. What percent of the people surveyed liked blue cars?
A. 50% B. 3% C. 51% D. 2%
Mathematics