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3 years ago

(14-(2x4))x5 what is the answer I need help

1 answer:

5 0

First you do 4x2 because it’s in the parentheses then 14-8 because 4x2=8 and then when you subtract that you get 6 The last step is to do 6x5 and you get your answer.

Answer:30

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What’s 1+1 I am so confused I am in middle school and this is the hardest question 10 points if u get it right lol

julsineya [31]

Answer:

It depends how you were taught. You could say it's 11 (eleven) or 2.

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3 years ago

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A production manager randomly sampled production lines at a factory that produces automobiles. She wanted to find out how many p

Elena-2011 [213]

Answer:

The confidence interval for the proportion of production lines that caused defects is (0.07, 0.09).

Step-by-step explanation:

A confidence interval for a population proportion is a function of the sample proportion and the margin of error.

The interval has two bounds, a lower bound and an upper bound.

The lower bound is the sample proportion subtracted by the margin of error.

The upper bound is the margin of error added to the sample proportion.

In this problem, we have that:

Sample proportion 0.08

Margin of error 0.01

0.08 - 0.01 = 0.07

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The confidence interval for the proportion of production lines that caused defects is (0.07, 0.09).

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4 years ago

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Kryger [21]

Its 160 .................

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3 years ago

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Engineers want to design passenger seats in commercial aircraft so that they are wide enough to fit 95 percent of adult men. Ass

zimovet [89]

Answer:

$z=1.64$

And if we solve for a we got

$a=14.4 +1.64*1.1=16.204$

The 95th percentile of the hip breadth of adult men is 16.2 inches.

Step-by-step explanation:

Let X the random variable that represent the hips breadths of a population, and for this case we know the distribution for X is given by:

$X \sim N(14.4,1.1)$

Where $\mu=14.4$ and $\sigma=1.1$

For this part we want to find a value a, such that we satisfy this condition:

$P(X>a)=0.05$ (a)

$P(X$ (b)

We can find a quantile in the normal standard distribution who accumulates 0.95 of the area on the left and 0.05 of the area on the right it's z=1.64

Using this value we can set up the following equation:

$P(X$

$P(z$

And we have:

$z=1.64$

And if we solve for a we got

$a=14.4 +1.64*1.1=16.204$

The 95th percentile of the hip breadth of adult men is 16.2 inches.

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3 years ago

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Ad libitum [116K]

It’s 60 degrees so the first one

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