Perform the indicated operation. Write the result in the form a + bi.
A. 0 + 
i
B. 0 - 
i
C. 0 - 
i
D. 0 + 
i
Answer: B
Mathematics
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Solve the problem.Water is steadily pumped out of a flooded basement. Let v be the volume of water (in thousands of gallons) that remains in the basement t hours after water begins to be pumped. A linear model is shown. How much water will be in the basement after 2 hours of pumping?
A. 16 thousand gallons B. 4 thousand gallons C. 6 thousand gallons D. 3 thousand gallons
Mathematics
Simplify the rational expression. (Assume the denominator is nonzero.)
A. - 
B. 
C. - 
D. 
Mathematics
Find the center and radius of the circle.x2 + y2 = -6x + 16
A. (-3, 0), r = 5 B. (-3, 0), r = 25 C. (3, 0), r = 5 D. (3, 0), r = 25
Mathematics
Solve the system by elimination.5 x - y = 114x + y = 16
A. (3, 4) B. (3, 5) C. (4, 3) D. No solution
Mathematics