exam Maths Puzzle Numerical Ability

Two airplanes leave Kennedy airport at 1pm. The air traffic controller reports that they are traveling away from each other at an angle of 103 degrees. The DC-10 travels at 509 mph

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exam Other Question

how do i do this?
Simplify the following fraction by putting it in lowest terms or by performing the indicated operation.

3xsq. ysq. -6xz over 6xsq. yz Simplify by combining like terms

2 sqrt (5x) + 5 sqrt (5x) - sqrt (5x)