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2 years ago

-12xy^3z^5+15x^2z factor

Mathematics

2 answers:

mafiozo [28]2 years ago

4 0

Answer:

3xz(–4y³z⁴+5x)

Step-by-step explanation:

Look at each term. See what they have in common. Factor out the common factor, leaving the other factors, divided by the factors removed, within the parentheses.

12 and 15 are both multiples of 3, so factor out 3 and leave the –4 and 5.

x and x² have the common factor, x. We leave x with the 5 needed as the other factor of x². (The -4 is the other factor of -12x)

There is no y in the second term, so y can not be factored out.

z can be factored out, leaving z⁴ in the first term and 5 as the other factor in the second term in the parentheses.

azamat2 years ago

3 0

Step-by-step explanation:

Kankam faktöriyel mi bu?Zormuş yaa nasıl cozcez acaba??

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Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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3 years ago

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Answer:

Catherine's GPA is 2.48

Step-by-step explanation:

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2 years ago

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Step-by-step explanation:

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7 0

3 years ago

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A study was conducted to measure the effectiveness of hypnotism in reducing pain. The measurements are centimeters on a pain sca

blondinia [14]

The confidence interval for mean of the "before-after" differences is $\fbox{(-0.4037,1.8037)}$

Further explanation:

Find the difference between the before pain and the after pain.

Difference = before-after

Kindly refer to the Table for the difference of between the before and after pain.

Sum of difference = $5.6$

Total number of observation = $8$

Mean of difference = $0.7$

Sample standard deviation $s$ = $1.3201$

Level of significance = $5\%$

Formula for confidence interval = $\left( \bar{X} \pm t_{n-1, \frac{\alpha}{2}\%} \frac{s}{\sqrt{n}} \right)$

confidence interval = $\left( 0.7 \pm t_{8-1, \frac{5}{2}\%} \frac{1.3201}{\sqrt{8}} \right)$

confidence interval = $\left( 0.7 \pm t_{7, \frac{5}{2}\%} \frac{1.3201}{\sqrt{8}} \right)$

From the t-table.

The value of $t_{7, \frac{5}{2}\%$ = $2.365$

Confidence interval = $( 0.7 \pm 2.365}\times \frac{1.3201}{\sqrt{8}}) \right)$

Confidence interval = $\left( 0.7 - 2.365}\times \0.4667,0.7 + 2.365}\times \0.4667) \right$

Confidence interval = $(0.7-1.1037,0.7+1.1037)$

Confidence interval = $\fbox{(-0.4037,1.8037)}$

The $95\%$ confidence interval tells us about that $95\%$ chances of the true mean or population mean lies in the interval.

Yes, the hypnotism appear to be effective in reducing pain as confidence interval include includes the positive deviation from the mean.

Learn More:

1. Learn more about equation of circle brainly.com/question/1506955

2. Learn more about line segments brainly.com/question/909890

Answer Details:

Grade: College Statistics

Subject: Mathematics

Chapter: Confidence Interval

Keywords:

Probability, Statistics, Speed dating, Females rating, Confidence interval, t-test, Level of significance , Normal distribution, Central Limit Theorem, t-table, Population mean, Sample mean, Standard deviation, Symmetric, Variance.

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3 years ago

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