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2 years ago

How do I find the roots of this polynomial equation?

Mathematics

1 answer:

DanielleElmas [232]2 years ago

4 0

Here is how you find the answer: (not "bUt JuSt UsE yOuR cAlCuLaToR")

Factor x3−18x+27

x3−18x+27

=(x−3)(x2+3x−9)

Hope this helps!!!!!!!

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The following histogram shows the relative frequencies of the heights, recorded to the nearest inch, of a population of women. T

Airida [17]

Answer:

The following histogram shows the relative frequencies of the height recorded to the nearest inch of population of women the mean of the population is 64.97 inches and the standard deviation is 2.66 inches

(a) Based on the histogram, what is the probability that the selected woman will have a height of at least 67 inches? Show your work

Answer:

0.22268

Step-by-step explanation:

z-score is z = (x-μ)/σ,

where x is the raw score

μ is the population mean

σ is the population standard deviation.

(a) Based on the histogram, what is the probability that the selected woman will have a height of at least 67 inches? Show your work

At least means equal to or greater than 67 inches

z = 67 - 64.97/2.66

z = 0.76316

P-value from Z-Table:

P(x<67) = 0.77732

P(x>67) = 1 - P(x<67) = 0.22268

The probability that the selected woman will have a height of at least 67 inches is 0.22268

Step-by-step explanation:

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3 years ago

willie buys a hot rod magazine for $7 and intends to stock up on pork rinds at 2$ a bag. he bought $15 write and inequality that

seropon [69]

Four-ounce bag of pork rinds offers eight grams of protein, he said, adding that Small Batch pork rinds are also gluten-free and lower in ...

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11 months ago

Need help with this math question

olga_2 [115]

The correlation coefficient is -0.87; strong correlation

<h3>How to determine the correlation coefficient?</h3>

The given parameters are:

x = Time spent working out

y = lbs Overweight

Next, we enter the table of values in a graphing tool.

From the graphing tool, we have the following summary:

<u>X Values</u>

∑ = 27.1
Mean = 2.71
∑(X - Mx)2 = SSx = 22.569

<u>Y Values</u>

∑ = 89
Mean = 8.9
∑(Y - My)2 = SSy = 778.9

<u>X and Y Combined</u>

N = 10
∑(X - Mx)(Y - My) = -114.19

<u>R Calculation</u>

r = ∑((X - My)(Y - Mx)) / √((SSx)(SSy))

r = -114.19 / √((22.569)(778.9))

r = -0.8613

Approximate

r = -0.87

This means that the correlation coefficient is -0.87

Also, the correlation coefficient is a strong correlation, because it is closer to -1 than it is to 0

Read more about correlation coefficient at:

brainly.com/question/27226153

#SPJ1

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2 years ago

Select the values that make the inequality -c>-4 true.

Vera_Pavlovna [14]

Answer:

c < 4

Step-by-step explanation:

whenever you divide or multiply an inequality by a negative it is a rule that you must reverse the inequality symbol

so -c > -4 means you must divide or multiply by a negative one to get 'c' by itself; therefore it becomes c < 4

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2 years ago

Which two consumer rights would customers depend on when returning a damaged item for a refund?

DENIUS [597]

The right to be heard and the right to redress.

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3 years ago

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