Solve.
= 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Write the imaginary numbers using the letter i.
A. ±50
B. 50i
C. 
i
D. -50i
Mathematics
Solve.A jet plane traveling at a constant speed goes 1200 miles with the wind, then turns around and travels for 1000 miles against the wind. If the speed of the wind is 50 mph and the total flight took 4 hours, find the speed of the plane in still air.
A. 550 mph B. 605 mph C. 525 mph D. 435 mph
Mathematics
If we are using ___________________ reasoning, our answer may not be the only correct one.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Estimate the sum or difference by first rounding to the nearest ten.9777
A. 8030 B. 8000 C. 8020 D. 8023
Mathematics