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3 years ago

Which choice shows the expression 4x2 + 13x + 9 in factored form?

Mathematics

1 answer:

Aleonysh [2.5K]3 years ago

4 0

Answer:

4x²+13x+9

iwill give you good method to simplify this

firstable take the 4 from x² and multiply it by 9

x²+13x+36

we find this equation

so the values is 4 and 9 because 4+9=13

4×9=36

(x+ )×(x+ )

first we take 9 and devide it by 4

9/4 the four for the x and the nine is number

so its will be

(4x+9)×(x+ )

same thing with 4 devide by 4 so the value is 1

so its will be like this

(4x+9)×(x+1) and this is the answer hopefully you understand my explain with my English

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Using the z-distribution, it is found that since the p-value is less than 0.05, there is evidence that the mean amount of cereal in each box is different from 16 ounces at 0.05 significance.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if the mean is not different to 16 ounces, that is:

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<h3>What is the test statistic?</h3>

The test statistic is:

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$\overline{x}$ is the sample mean.

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$\sigma$ is the standard deviation of the population.

n is the sample size.

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$\overline{x} = 15.75, \mu = 16, \sigma = 1.46, n = 150$ .

Hence:

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More can be learned about the z-distribution at brainly.com/question/16313918

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1 year ago

Use the function f(x) to answer the questions.

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