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alexira [117]
3 years ago
15

Yelp............................

Mathematics
1 answer:
exis [7]3 years ago
3 0

Answers:

f(2) = \textbf{1}\\\\f^{-1}(1) = \textbf{2}\\\\f^{-1}(f(2)) = \textbf{2}

===================================================

Explanation:

Replace x in f(x) with 2. Then simplify

f(x) = \frac{1}{2}x\\\\f(2) = \frac{1}{2}(2)\\\\f(2) =1\\

Then plug x = 1 into the inverse function and simplify

f^{-1}(x) = 2x\\\\f^{-1}(1) = 2(1)\\\\f^{-1}(1) = 2\\

Lastly,

f^{-1}(f(2)) = f^{-1}(1) = 2

is the result of combining the two parts above.

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b. v(t) gives the Johanna's velocity at time t. The magnitude of her velocity, or speed, is |v(t)|. Integrating this would tell us the total distance she has traveled whilst jogging.

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\displaystyle\int_0^{40}|v(t)|\,\mathrm dt=12\cdot200+8\cdot240+4\cdot220+16\cdot150=7600

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3 years ago
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2 years ago
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bulgar [2K]

Answer:

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