Multiply. Write the result in the form a + bi.
? 
A. 48
B. -48
C. 48i2
D. -48i
Answer: B
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Solve the problem.A twin-engined aircraft can fly 768 miles from city A to city B in 4 hours with the wind and make the return trip in 6 hours against the wind. What is the speed of the wind?
A. 16 mph B. 64 mph C. 48 mph D. 32 mph
Find the equation of the ellipse satisfying the given conditions. The center is at the origin.Sum of lengths of major and minor axes 16, focus (0, 4)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Evaluate the expression.-23 - (-60)
A. 83 B. -83 C. -37 D. 37
Mr. Manella consumed 1200 cc of liquid during a 24-hour period. His urine output was measured to be 250 mL, 125 mL, 150 mL, 200 mL, 150 mL, and 275 mL. Determine her fluid balance or imbalance.
A. 50 cc more output than intake B. 100 cc more output than intake C. 50 cc more intake than output D. 100 cc more intake than output