Answer:
I think your answer will be 21 cause you timeing the 3 by 7
Answer:
Step-by-step explanation:
Remember:
(fog)(x)= g(f(x))
a)
=[f\ o\ (g\ o \ g^{-1})](x)=f(x)\\\\g^{-1}(g(f(x))=g^{-1}(2x-\dfrac{1}{x} )=\dfrac{2x-\dfrac{1}{x}-2}{5} =\dfrac{2x}{5} -\dfrac{1}{5x}-\dfrac{2}{5} \\\\\\\boxed{f(x)=\dfrac{2x}{5} -\dfrac{1}{5x}-\dfrac{2}{5} }\\\\](https://tex.z-dn.net/?f=%5B%28f%5C%20o%5C%20g%29%5C%20o%5C%20g%5E%7B-1%7D%5D%28x%29%3D%5Bf%5C%20o%5C%20%28g%5C%20o%20%5C%20g%5E%7B-1%7D%29%5D%28x%29%3Df%28x%29%5C%5C%5C%5Cg%5E%7B-1%7D%28g%28f%28x%29%29%3Dg%5E%7B-1%7D%282x-%5Cdfrac%7B1%7D%7Bx%7D%20%29%3D%5Cdfrac%7B2x-%5Cdfrac%7B1%7D%7Bx%7D-2%7D%7B5%7D%20%3D%5Cdfrac%7B2x%7D%7B5%7D%20-%5Cdfrac%7B1%7D%7B5x%7D-%5Cdfrac%7B2%7D%7B5%7D%20%20%5C%5C%5C%5C%5C%5C%5Cboxed%7Bf%28x%29%3D%5Cdfrac%7B2x%7D%7B5%7D%20-%5Cdfrac%7B1%7D%7B5x%7D-%5Cdfrac%7B2%7D%7B5%7D%20%7D%5C%5C%5C%5C)
b)
Given that the plane flies at 12mph
⇒ 1 hour = 12 miles
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Rewrite 1 hour as 60 mins
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60 mins = 12 miles
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Find 1 minute
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1 min = 12 ÷ 60
1 min = 0.2 miles
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Find 18 minutes
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1 min = 0.2 miles
18 mins = 0.2 x 18
18 mins = 3.6 miles
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Answer: The jet plane traveled 2.6 miles in 18 minutes.
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Un cilindro tiene dos bordes
