Write the expression in the standard form a + bi.i12
A. -1
B. i
C. 1
D. -i
Answer: C
You might also like to view...
Find the fraction of a circle that encloses the given angle.30°
A. 
B. 
C. 
D. 
Solve the problem.A piece of land is shaped like a right triangle. Two people start at the right angle of the triangle at the same time, and walk at the same speed along different legs of the triangle. If the area formed by the positions of the two people and their starting point (the right angle) is changing at 
then how fast are the people moving when they are 
from the right angle? (Round your answer to two decimal places.)
A. 1.33 m/s B. 4.50 m/s C. 0.67 m/s D. 0.33 m/s
Simplify the expression. Assume all variables represent nonnegative real numbers. Write the answer in exponential form when necessary.(x2/5)2/7
A. x4/7 B. x4/35 C. x24/35 D. x35/4
Solve the system of equations. x + y + z = 10 x - y + 3z = 43x + y + z = 16
A. {(3, 5, 2)} B. {(2, 5, 3)} C. {(2, 3, 5)} D. {(5, 3, 2)}