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3 years ago

PLEASE HELP AND ANSWER QUICKLY DUE SOON!!!!!

Mathematics

1 answer:

love history [14]3 years ago

6 0

9(3)^2-3(3)+3
9(9)-9+3
81-9+3
=75

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Step-by-step explanation:

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3 years ago

What is the critical value for a chi-square test with 13 degrees of freedom at the 1 percent level of significance

vagabundo [1.1K]

Answer: 27.688

Step-by-step explanation:

The critical chi-square value $\chi^2_{(df,\alpha)}$ depends on significance level ( $\alpha$ ) and degrees of freedom (df) .

Given significance level: ( $\alpha$ ) = 1% = 0.01

Degrees of freedom (df)= 13

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4 years ago

In science class, the average score on a lab report is 82 points, with all students scoring within 3.2 points of the average. if

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The absolute value equation that represents the minimum and maximum scores is:

|x - 82| = 3.2.

<h3>What is the absolute value function?</h3>

The absolute value function is defined by:

f(x) = x, x ≥ 0.

f(x) = x, x < 0.

It measures the distance of a point x to the origin.

For this problem, the distance between the minimum and the maximum scores and the mean is of 3.2, that is, the difference between these scores x and the mean of 82 is of 3.2, hence the absolute value equation that represents this situation is given by:

|x - 82| = 3.2.

More can be learned about absolute value equations at brainly.com/question/24514895

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2 years ago

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4 years ago

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