Mathematics, 05.09.2020 03:01, moose12002
Flying against the wind, an airplane travels 8010 kilometers in 9 hours. Flying with the wind, the same plane travels 9040 kilometers in 8 hours. What is the rate of the plane in still air and what is the rate of the wind?
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Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b
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Flying against the wind, an airplane travels 8010 kilometers in 9 hours. Flying with the wind, the s...
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