Write the expression in the standard form a + bi.If z = 4 - 2i, evaluate z + 
.
A. 8 - 4i
B. 8 + 4i
C. -4i
D. 8
Answer: D
Mathematics
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Find the value of the unknown coordinate so that the distance between the points is as given.(2, 3) and (8, y); distance is 10
A. y = 7, y = -1 B. y = 11, y = -5 C. y = 67, y = -133 D. y = 14.66, y = -8.66
Mathematics
Subtract.0.7122 - 0.319
A. 0.4932 B. 0.3922 C. 0.4032 D. 0.3932
Mathematics
The graph of a polar equation is given. Select the polar equation for the graph.
A. r = 8 cos ? B. r sin ? = 4 C. r = 8 sin ? D. r = 4
Mathematics
Solve.In a game of cards, Lindsey won 4 chips, lost 15 chips, won 11 chips, and lost 5 chips. What was her final count of chips?
A. -5 chips B. -27 chips C. 35 chips D. 5 chips
Mathematics