Perform the indicated operations and express your answer in the form a + bi. 
A. i
B. ±9
C. -9i
D. 9i
Answer: D
Mathematics
You might also like to view...
Use U = universal set = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {1, 2, 3, 5, 8}, B = {2, 3, 5, 7}, and C = {1, 4, 9} to find the set.
A. {1, 2, 3, 5, 7, 8} B. {0, 4, 6, 9} C. {4, 6, 9} D. {1, 4, 6, 8, 9}
Mathematics
For the quadratic function, tell whether the graph opens up or down and whether the graph is wider, narrower, or the same shape as the graph of 
f(x) = -x2 - 6
A. Down; same B. Up; same C. Up; narrower D. Down; narrower
Mathematics
Solve the inequality and graph the solution set.|4x + 8| > 0
A. 
B. 
C. 
D. 
Mathematics
Simplify the exponential expression.(x8y)2
A. x16y B. x16y2 C. x10y D. x10y3
Mathematics