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3 years ago

11

What is greater than 40 but less than 20

1 answer:

Paladinen [302]3 years ago

3 0

I've already been complemented twice on my previous answer, but then I discovered that I mis-read the question. My entire original answer was wrong, and I have to delete it.

I don't believe that any number can satisfy both of those conditions.
I'll say the question has no answer.

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Ill mark brainlist plss help

mojhsa [17]

Answer:

w=20

Step-by-step explanation:

Solve for w by cross multiplying.

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3 years ago

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Suppose an empty flatbed railroad car sits on a track as shown below, with a person pulling on a rope with a force of 310 Newton

Lelechka [254]

Answer:

Step-by-step explanation:

a) 310cos25 = 281 N

b) (620 - 281) / cos-18 = 356 N

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2 years ago

A first-aid booth is located 3/4 of the distance from point A to point B. At what marker on the path is the first-aid booth loca

Anastaziya [24]

3/4*8= 24/4= 6 this is 3/4 the distance between point a and b

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2 years ago

How do you solve 5-4x<95

mario62 [17]

$5 - 4x < 95 \\ - 4x < 95 - 5 \\ - 4x = 90 \\ x = - \frac{90}{4} \\ \boxed{ x = - \frac{45}{2} }$

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2 years ago

A random sample of 56 lithium batteries has a mean life of 645 hours with a population standard deviation of 31 hours. Compute t

bearhunter [10]

Answer: A. (636.9, 653.1)

Step-by-step explanation:

Given : Sample size : n=56

Significance level : $\alpha: 1-0.95=0.05$

Critical value : $z_{0.05}=1.96$

Sample mean : $\overline{x}=645\text{ hours}$

Standard deviation : $\sigma= 31\text{ hours}$

The 95% confidence interval for population mean is given by :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=645\pm (1.96)\dfrac{31}{\sqrt{56}}\\\\=645\pm8.1\\\\=(636.9, 653.1)$

Hence, 95% confidence interval for population mean is (636.9, 653.1).

8 0

3 years ago