Write the expression in the standard form a + bi.
A. 1 + 3i
B. -1 + 3i
C. -1 - 3i
D. -1 + 10i
Answer: B
Mathematics
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Given a function and how it is to be shifted, find an equation for the shifted function.y = 
, right 2
A. y = 
+ 2
B. y = 
- 2
C. y = 
D. y = 
Mathematics
For the compound inequality, decide whether intersection or union should be used. Then give the solution set in both interval and graph forms.x ? -5 and x < -2
A. Union; (-?, ?)
B. Union; (-?, -2)
C. Intersection; [-5, -2)
D. Intersection; (-?, -5]
Mathematics
Solve the problem.How long will it take for the population of a certain country to double if its annual growth rate is 
? Round to the nearest year.
A. 28 yr B. 80 yr C. 1 yr D. 12 yr
Mathematics
Evaluate the limit.
A. 1
B. 0
C. 
D. ?
Mathematics