Divide.
A. 
+ 
i
B. - 
+ 
i
C. 
- 
i
D. - 
+ 
i
Answer: D
Mathematics
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Solve. Round to the nearest tenth when necessary.Jack and Jill are planning a new kitchen. The old kitchen measured 11 feet by 20 feet. The new kitchen is similar in shape, but the longest dimension is 28 feet. What is the smaller dimension of the new kitchen?
A. 50.9 ft B. 7.9 ft C. 15.4 ft D. 6160 ft
Mathematics
Solve.Last year, Maria earned $306 per week. This year, her salary increased to 
per week. What is the percent of increase?
A.
| 91.5% |
B. 8.5%
C.
| 92.2% |
D.
| 7.8% |
Mathematics
Use De Moivre's theorem to evaluate the expression. Write the result in standard form.(3i)2
A. -9i B. 9i C. 9 D. -9
Mathematics
Find the limit, if it exists.
?
?
A. 
B. 
C. 
D. The limit does not exist
Mathematics