Solve the equation. Write the answer in a + bi form.z2 + 1 - 
i = 0
A. 6 - 2i, -6 - 2i
B. 
+ 
i, - 
- 
i
C. 
+ 
, - 
- 
D. 
- 
, - 
+ 
Answer: C
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Provide an appropriate response.Simplify: 
÷ 
Fill in the blank(s) with the appropriate word(s).
Change the given polar coordinates (r, ?) to Cartesian coordinates (x, y).
A. 
B. 
C. 
D. 
Use the periodic compound interest formula to solve the problem.Suppose that you have $8000 to invest. Which investment yields the greater return over 4 years: 6.6% compounded monthly or 6.7% compounded quarterly?
A. $8000 invested at 6.7% compounded quarterly over 4 years yields the greater return. B. $8000 invested at 6.6% compounded monthly over 4 years yields the greater return. C. Both investment plans yield the same return.
Evaluate the integral using the given substitution.
dx , u = 2x - 4
A. - 
(2x - 4)-5 + C
B. (2x - 4)-5 + C
C. - 
(2x - 4)-7 + C
D. - 
(2x - 4)-5 + C