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PolarNik [594]
2 years ago
15

Simplify to a single power of 3

Mathematics
1 answer:
timofeeve [1]2 years ago
4 0

Answer:

answer is 7 (seven) is that all?

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It should be 24 feet.
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Please help asap i do not understand this i just need an answer WILL GIVE BRAINLIEST
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z -12 the second one

Step-by-step explanation:

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Which phrase describes a nonlinear function?
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3 years ago
Find the value of x.
Akimi4 [234]

Answer:

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Step-by-step explanation:

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The points obtained by students of a class in a test are normally distributed with a mean of 60 points and a standard deviation
Paraphin [41]

Answer:

0.13% of students have scored less than 45 points

Step-by-step explanation:

Problems of normally distributed samples can be 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 = 60, \sigma = 5

About what percent of students have scored less than 45 points?

This is the pvalue of Z when X = 45. So

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

Z = \frac{45 - 60}{5}

Z = -3

Z = -3 has a pvalue of 0.0013

0.13% of students have scored less than 45 points

3 0
3 years ago
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