Solve.If two planes leave an airport at the same time with one flying west at 660 miles per hour and the other flying east at 340 miles per hour, how long will it take them to be 5000 miles apart?
A. 6 hr
B. 5 hr
C. 4 hr
D. 4.5 hr
Answer: B
Mathematics
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A. 25xy6
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Mathematics
Find the domain and range of the function.f(x) = x2 - 20x + 101
A. Domain: (-?, ?); Range: [1, ?) B. Domain: [1, ?); Range: (-?, 0] C. Domain: [1, ?); Range:(-?, 10] D. Domain: (-?, ?); Range: [10, ?)
Mathematics
Use the graph of the function f to draw the graph of the inverse function f-1. 
A. 
B. 
C. 
D. 
Mathematics
List the terms of the expression.6n4 - 11n3 - 5n + 21
A. 6, n4, -11, n3, -5, n, 21 B. 6n4, 11n3, -5n, 21 C. 6n4, -11n3, 5n, 21 D. 6n4, -11n3, -5n, 21
Mathematics