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Fiesta28 [93]
3 years ago
5

If f(x)=x and g(x)=2, what is (f o g)(x)?

Mathematics
1 answer:
IgorC [24]3 years ago
6 0

Answer:

= 2x

Step-by-step explanation:

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If h(x) is the inverse of f(x). what is the value of h(f(x))?
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Option C is correct

The value of h(f(x)) is, x

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As per the statement:

If h(x) is the inverse of f(x).

by definition of inverse:

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Suppose that scores on the mathematics part of a test for eighth-grade students follow a Normal distribution with standard devia
riadik2000 [5.3K]

Answer:

We need an SRS of scores of at least 153.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645

Now, find M as such

M = z*\frac{\sigma}{\sqrt{n}}

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This is at least n, in which n is found when M = 20, \sigma = 150. So

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20 = 1.645*\frac{150}{\sqrt{n}}

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