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3 years ago

PLZ HELP ME THANKS. If 3x-5-6x-2 is equaled to -1. Then how do I "check it"?

Mathematics

2 answers:

mihalych1998 [28]3 years ago

8 0

Answer:

-3

Step-by-step explanation:

3x-5-6x-2= -1

-3x -7 = -1

-3x= 7-1

-3x= 6

x= 6/(-2)

x= -3

---------

proof:

3*(-2)- 5- 6*(-2)- 2= -1

-6 -5 +12 -2 = -1

-13+12= -1

-1= -1

done

Nezavi [6.7K]3 years ago

5 0

Answer:

3(-1)-5-6(-1)-2. You found the value of X, so you need to put it back into the equation to see if it equals out.

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[Chorus]

Yeah, but now I'm dodging potholes in my sunburnt Silverado

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Step-by-step explanation:

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2 years ago

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steposvetlana [31]

Using the normal distribution, it is found that the probability is 0.16.

<h3>Normal Probability Distribution</h3>

In a normal distribution with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

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

It 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, which is the percentile of X.

In this problem, the mean and the standard deviation are given by, respectively, $\mu = 70, \sigma = 3$ .

The proportion of students between 45 and 67 inches is the p-value of Z when <u>X = 67 subtracted by the p-value of Z when X = 45</u>, hence:

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More can be learned about the normal distribution at brainly.com/question/24663213

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Kisachek [45]

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Step-by-step explanation:

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