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4 years ago

What ordered pair is not on the graph of y=-5x+2

Mathematics

2 answers:

Dovator [93]4 years ago

4 0

We need a list of order pairs to choose from.

Ronch [10]4 years ago

3 0

What are the answer choices? You have to give the answer choices for me to answer them, so...

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5) What is the distance between the points (3,-5) and (5,6)?

Afina-wow [57]

B 11.2 Have a good day :)

7 0

3 years ago

At sea, the distance D to the horizon is directly proportional to the square root of the elevation E of the observer. If a perso

Alla [95]

<span>The problem says that the distance D to the horizon is directly proportional to the square root of the elevation E of the observer, so:
</span>
The person who is 36 feet above the water ⇒ √36=6

A person 49 feet above the water ⇒ √49=7
<span>
So, by proportions, you have:

(7/6)x7.4= 8.63 miles

Therefore, the answer is: </span><span>a person 49 feet above the water can see 8.63 miles</span><span> </span>

7 0

3 years ago

Please help me i beg you I really need

SCORPION-xisa [38]

The correct answer is B, sorry if it wasn't correct.

3 0

3 years ago

Read 2 more answers

Can you plz help me I don’t understand

amid [387]

The constant of proportionality is 5. For every time the total area "A" is multiplied by one the length is multiplied by 5.

6 0

3 years ago

A manager is comparing wait times for customers in a coffee shop based on which employee is

anyanavicka [17]

Using the t-distribution, as we have the standard deviation for the sample, it is found that there is a significant difference between the wait times for the two populations.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, we test if there is no difference, that is:

$H_0: \mu_A - \mu_B = 0$

At the alternative hypothesis, it is tested if there is difference, that is:

$H_1: \mu_A - \mu_B = 0$

<h3>What are the mean and the standard error of the distribution of differences?</h3>

For each sample, we have that:

$\mu_A = 73, s_A = \frac{2}{\sqrt{100}} = 0.2$

$\mu_B = 74, s_B = \frac{4}{\sqrt{100}} = 0.4$

For the distribution of differences, we have that:

$\overline{x} = \mu_A - \mu_B = 73 - 74 = -1$

$s = \sqrt{s_A^2 + s_B^2} = \sqrt{0.2^2 + 0.4^2} = 0.447$

<h3>What is the test statistic?</h3>

It is given by:

$t = \frac{\overline{x} - \mu}{s}$

In which $\mu = 0$ is the value tested at the null hypothesis.

Hence:

$t = \frac{\overline{x} - \mu}{s}$

$t = \frac{-1 - 0}{0.447}$

$t = -2.24$

<h3>What is the p-value and the decision?</h3>

Considering a one-tailed test, as stated in the exercise, with 100 - 1 = 99 df, using a t-distribution calculator, the p-value is of 0.014.

Since the p-value is less than the significance level of 0.05, it is found that there is a significant difference between the wait times for the two populations.

More can be learned about the t-distribution at brainly.com/question/16313918

8 0

2 years ago