With a tailwind , a helicopter flies 300 miles in 1.5 hours. when the helicopter flies back against the same wind the trip takes
three hours what is the helicopter speed? What is the wind speed
1 answer:
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There any answer choices ur suppose to have
The Answer Is -7 Zuidplaspolder
Suppose the fee is 9 1/2 of the selling prive and theres ur answer
Hello,
![\frac{1}{2} \int\limits^{\frac{\pi}{5}} _0 {(3\ sin(5\theta))^2} \, d\theta\\\\ =\frac{9}{4} \int\limits^{\frac{\pi}{5}} _0 {(1-cos(10\theta))} \, d\theta\\\\ =\frac{9}{4} [\theta-\frac{sin(10\theta)}{10}]^\frac{\pi}{5}} _0 \\\\ =\frac{9\pi}{20}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%20%5Cint%5Climits%5E%7B%5Cfrac%7B%5Cpi%7D%7B5%7D%7D%20_0%20%7B%283%5C%20sin%285%5Ctheta%29%29%5E2%7D%20%5C%2C%20d%5Ctheta%5C%5C%5C%5C%0A%3D%5Cfrac%7B9%7D%7B4%7D%20%5Cint%5Climits%5E%7B%5Cfrac%7B%5Cpi%7D%7B5%7D%7D%20_0%20%7B%281-cos%2810%5Ctheta%29%29%7D%20%5C%2C%20d%5Ctheta%5C%5C%5C%5C%0A%3D%5Cfrac%7B9%7D%7B4%7D%20%5B%5Ctheta-%5Cfrac%7Bsin%2810%5Ctheta%29%7D%7B10%7D%5D%5E%5Cfrac%7B%5Cpi%7D%7B5%7D%7D%20_0%20%5C%5C%5C%5C%0A%3D%5Cfrac%7B9%5Cpi%7D%7B20%7D)
≈1.41371669412
