7. If f(x) = -x + 7, what is f(15)?Of(15) = 22f(15) = -22Of(15) = -8f(15) = 8

Mathematics

1 answer:

zysi [14]11 months ago

6 0

the fuction f(x) is equal to:

$f(x)=-x+7$

now, to evaluate f(15) we have to replace x=15 so the equation is going to be equal to:

$f(15)=-15+7=-8$

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Liono4ka [1.6K]

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Answer:

Top 3%: 4.934 cm

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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:

$\mu = 4.84, \sigma = 0.05$