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3 years ago

PLEASE HELP!! LMNP is rotated 90° clockwise around the origin. What are the coordinates of M’

Mathematics

1 answer:

lubasha [3.4K]3 years ago

5 0

Answer:

The answer is "(4, -5)".

Step-by-step explanation:

Please find the complete question in the attached file.

In the given image file when we rotate it to 90 degrees clockwise so the value as the rule is $(x, y) \longrightarrow (y, -x)$

Putting the value in x = 5 and y = 4 then:

$(5, 4) \longrightarrow (4, -5)$

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A publisher reports that 35% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is

Leviafan [203]

Answer:

The pvalue of the test is 0.3844 > 0.1, which means that there is not sufficient evidence at the 0.10 level to support the executive's claim

Step-by-step explanation:

A publisher reports that 35% of their readers own a laptop.

This means that the null hypothesis is:

$H_0: p = 0.35$

A marketing executive wants to test the claim that the percentage is actually different from the reported percentage.

This means that the alternate hypothesis is:

$H_{a}: p \neq 0.35$

The test statistic is:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, $\sigma$ is the standard deviation and n is the size of the sample.

0.35 is tested at the null hypothesis:

This means that $\mu = 0.35, \sigma = \sqrt{0.35*0.65}$

A random sample of 190 found that 32% of the readers owned a laptop.

This means that $X = 0.32, n = 190$

Z-statistic:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{0.32 - 0.35}{\frac{\sqrt{0.35*0.65}}{\sqrt{190}}}$

$z = -0.87$

pvalue of the test and decision:

As we are testing that the mean is different from a value and z is negative, the pvalue of the test is 2 multiplied by the pvalue of z = -0.87

Looking at the z-table, z = -0.87 has a pvalue of 0.1922

2*0.1922 = 0.3844

0.3844 > 0.1, which means that there is not sufficient evidence at the 0.10 level to support the executive's claim

5 0

3 years ago

Which equation represents a line that passes through (4, 5) and has a slope of ?

Nadusha1986 [10]

Answer:

Step-by-step explanation:

To find the answer, we can use the point-slope form:

$y-y_1=m(x-x_1)$

Where (x₁, y₁) is a point and m is our slope.

Let's let our point (4, 1/3) be (x₁, y₁) respectively.

We also know that our slope is 3/4. So, substitute 3/4 for m.

This yields:

$y-\frac{1}{3}=\frac{3}{4}(x-4)$

The choice that represents this is B.

So, our correct answer is B.

And we're done!

7 0

3 years ago

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Whats A O E in the diagram for A O C

Orlov [11]

Answer:

where is the picture or graph

or something

Step-by-step explanation:

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3 years ago

A softball team is ordering pizza to eat after their tournament. They plan to order cheese pizzas that cost $6 each and four-top

gulaghasi [49]

Answer:

6c+10f

Step-by-step explanation:

Cost of 1 cheese pizza=6

Cost of c cheese pizza=6c

Cost of 1 four-topping pizzas=10

Cost of 1 four-topping pizzas=10f

Total cost=6c+10f

Hope this will help:)

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4 years ago

What is 34×60 Brainliest Answer Wins

ANEK [815]

Answer:

2040

Step-by-step explanation:

34x60=2040

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4 years ago

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