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3 years ago

This is for trustmeiamsmart hurry plzzzzzzzzzzzzzz

Mathematics

2 answers:

Stella [2.4K]3 years ago

5 0

Answer:

distance between a and b is 1

distance between b and c is 3

distance between b and a is 1

6,-3

2-,5

-10,-3

-2-11

Leno4ka [110]3 years ago

3 0

Answer:

Lol question for me only

Real Answer:

A and B = 1

B and C = 3

B and A = 1

Four points that are four points

6,-3

-2,5

-10,-3

-2,-11

Distance between some points

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Helppp please please please PLEASE NO ONE WANTS TO HELP ME PLEASE

dimulka [17.4K]

Answer: the answe is 7^5

So it’s option 1

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

The perimeter of a rectangular swimming pool is 160 feet . The length of the swimming pool is four times its width. Find the dim

Murrr4er [49]

Formula for Perimeter of Rectangle:

P = 2(L + W)

Plug in 160:

160 = 2(L + W)

L = 4W
So we can plug in '4W' for 'L' in the first equation.
<span>160 = 2(L + W)

160 = 2(4W + W)

Combine like terms:

160 = 2(5W)

160 = 10W

Divide 10 to both sides:

W = 16

Now we can plug this back into any of the two equations to find the length.

L = 4W

L = 4(16)

L = 64

So the width is 16, and the length is 64.</span>

6 0

3 years ago

Read 2 more answers

Am purchased a television that was originally $300. He had a coupon for 35% off all electronics. How much did the television cos

maria [59]

Answer: $206.70

Step-by-step explanation:

The coupon reduced the price of the television by 35% to:

= 300 * ( 1 - 35%)

= 300 * 65%

= $195

He then had to pay a 6% tax:

= Price * ( 1 + tax)

= 195 * ( 1 + 6%)

= 195 * 1.06

= $206.70

6 0

3 years ago

Yoonie is a personnel manager in a large corporation. Each month she must review 16 of the employees. From past experience, she

Anarel [89]

Answer:

$P(3.25 < \bar X < 4.25)$

And we can use the z score formula given by:

$z = \frac{\bar X -\mu}{\sigma_{\bar X}}$

And using the z score we have:

$P(\frac{3.5-4}{0.3}< Z< \frac{4.25-4}{0.3}) = P(-1.667< Z< 0.833)$

And we can use the normal standard distribution table or excel in order to find the probabilities and we got:

$P(-1.667< Z< 0.833)= P(Z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the time it takes her to complete one review, and for this case we know the distribution for X is given by:

$X \sim N(4,1.2)$

Where $\mu=4$ and $\sigma=1.2$

And we select a sample size of n =16. Since the dsitribution for X is normal then the distribution for the sample mean $\bar X$ is also normal and given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

$\sigma_{\bar X}= \frac{1.2}{\sqrt{16}}= 0.3$

For this case we want to find this probability:

$P(3.25 < \bar X < 4.25)$

And we can use the z score formula given by:

$z = \frac{\bar X -\mu}{\sigma_{\bar X}}$

And using the z score we have:

$P(\frac{3.5-4}{0.3}< Z< \frac{4.25-4}{0.3}) = P(-1.667< Z< 0.833)$

And we can use the normal standard distribution table or excel in order to find the probabilities and we got:

$P(-1.667< Z< 0.833)= P(Z$

The graph illustrating the problem is on the figure attached.

4 0

3 years ago

Jennifer was awarded damages of $150,000 in a successful lawsuit she brought against her employer 4 years ago. Simple interest o

Inessa05 [86]

The annual interest is $150,000 x 0.15 = $22,500. The accrued interest after 4 years is $90,000. Therefore in the final judgement Jennifer would be awarded:
150,000 + 90,000=240,000.
The answer is $240,000.

4 0

3 years ago