HELP ASAP!!!!!!

Explain the step by step of composition functions

jonny [76]

Composition functions are functions in which the input goes in and the output of the first function becomes the input for the second. You can evaluate these in two ways.

1) You can simply input the x value into the first function. After solving for it's value, you can input into the second one. The output is the composite functions answer.

2) If they only want a new function or you want to do it a different way, you have to put the first function (the whole thing) in for x in every place. You can then simplify.

8 0

3 years ago

Pls help this is my last attempt to get it right before I fail.

TEA [102]

The answer is D. SF is .4

5 0

2 years ago

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What is the result of 31.978 subtracted from 66.4?

jasenka [17]

<h2>Answer:</h2>

34.422

<h3>Explanation:</h3>

A splendiferous teen willing to help,

who listens to "Fight Song,"

stay salty...

5 0

2 years ago

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. If IQ scores are normally distributed with a mean of 100 and a standard deviation of 5, what is the probability that a person

bulgar [2K]

Answer:

2.28% probability that a person selected at random will have an IQ of 110 or greater

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 100, \sigma = 5$