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3 years ago

If f(x)=-x+8 and g(x)=x^4,what is (g•f)(2)?

Mathematics

1 answer:

wariber [46]3 years ago

5 0

Answer:

It can be written as f(−8) or f(3(−2)−2)

Explanation:

You would substitute −2 for the x in 3x−2 and then insert 3(−2)−2 for the g. You would end up with f(3(−2)−2), which can also be simplified to f(−8)

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Step-by-step explanation:

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3 years ago

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3 years ago

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3 years ago

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Ganezh [65]

Answer:

The values of $a$ and $b$ are $33$ and $\frac{20\sqrt{3}}{3}$ , respectively.

Step-by-step explanation:

The statement is equivalent to the following mathematic expression:

$\left(5 + 2\sqrt{2})^{2} = a + b\cdot \sqrt{6}$ (1)

By definition of the perfect square trinomial:

$25 + 20\cdot \sqrt{2} + 8 = a + b\cdot \sqrt{6}$

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And by direct comparison we have the following system:

$a = 33$ (2)

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By (3), we solve for $b$ :

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$b = \frac{20\sqrt{3}}{3}$

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3 years ago