Simplify. Write your answer in the form a + bi, where a and b are real numbers.(5 + 
) + (1 + 
)
A. 6 + 10i
B. 6 + 6i
C. 6 + 4i
D. 6 + 68i
Answer: A
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Decide whether or not the given equation is an identity.
= cot ?
A. Yes B. No
Make a preference table for the given voting situation.Ten voters are asked to rank 3 brands of shoes: A, B, and C. The ten voters turn in the following ballots showing their preferences in order: 
Make a preference table for these ballots.
A. 
B. 
C. 
D. 
For the given polynomial function, find the requested value.f(x) = 9x2 + 5x - 5; find f(2)
A. 23 B. 31 C. 41 D. 37
Solve the problem. Round to the nearest tenth of a percent if necessary.Last year, Maria earned $358 per week. This year, her salary increased to 
per week. Calculate the percent increase.
A. There was a 93.6% increase in salary. B. There was a 6.4% increase in salary. C. There was a 94% increase in salary. D. There was a 6% increase in salary.