Simplify. Write your answer in the form a + bi, where a and b are real numbers.(-4 + 4i) + (7 + 2i)
A. 3 + 8i
B. 3 + 6i
C. -3 + 6i
D. 7 + 6i
Answer: B
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Find the surface area or volume.Use numerical integration with a programmable calculator or a CAS to find, to two decimal places, the area of the surface generated by revolving the curve 
about the x-axis.
A. 7.21 B. 1.15 C. 2.29 D. 14.42
Find the area of the given figure.
A. 2444 sq. ft B. 1222 sq. ft C. 1104.5 sq. ft D. 611 sq. ft
Provide an appropriate response.What is wrong with the following problem? 
0
What will be an ideal response?
Describe how the graph of the given function can be obtained by transforming the graph of the reciprocal function f(x) = 1/x.f(x) = 
A. Shift the graph of the reciprocal function right 5 units, stretch vertically by a factor of 19, and then shift 4 units up. B. Shift the graph of the reciprocal function right 5 units, reflect across the x-axis, stretch vertically by a factor of 19, and then shift 4 units up. C. Shift the graph of the reciprocal function right 5 units, reflect across the x-axis, stretch vertically by a factor of 19, and then shift 4 units down. D. Shift the graph of the reciprocal function right 5 units, stretch vertically by a factor of 19, and then shift 4 units down.