Ask question

Ask question

All categories

3 years ago

10

3) The coordinates of point A are (−3, 6) and the coordinates of point B are (3, −6). Find the slope of AB

2 answers:

PtichkaEL [24]3 years ago

7 0

The slope is 2 because the formula for finding the slope is change in y over change in x. So, u take 6 from A and -6 from B if u subtract them u get 12. U get 12 because minus of minus gives u plus so if u do the same thing for the next X as well u will end up with -6. So if u divide both , u end up with positive 2.

Good luck with problem

Gekata [30.6K]3 years ago

5 0

The answer is d....

You might be interested in

Is (-7,2 a solution

valentinak56 [21]

Answer:

(-7,2) is a solution but where is the question?

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

The sick days of employees every two years in a company are normally distributed with a population standard deviation of 7 days

Alecsey [184]

Answer:

The 95% confidence interval for the population mean is between 17.93 days and 24.07 days.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.025 = 0.975$ , so $z = 1.96$

Now, find M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 1.96\frac{7}{\sqrt{20}} = 3.07$

The lower end of the interval is the sample mean subtracted by M. So it is 21 - 3.07 = 17.93 days

The upper end of the interval is the sample mean added to M. So it is 21 + 3.07 = 24.07 days

The 95% confidence interval for the population mean is between 17.93 days and 24.07 days.

7 0

3 years ago

Read 2 more answers

1. Determine the variables in the figure below.<br> 20<br> 50

Marina CMI [18]

Answer:

r=8

t=4√29

Step-by-step explanation:

By the altitude leg theorem:

${20}^{2} = 50r$

This implies that:

$r = \frac{20 \times 20}{50}$

We simplify to obtain:

$r = 4 \times 2 = 8$

By the Pythagoras theorem:

${t}^{2} = {20}^{2} + {8}^{2}$

${t}^{2} = 400 + 64$

${t}^{2} = 464$

$t = \sqrt{464}$

$t = 4 \sqrt{29}$

7 0

3 years ago

If the number 38,469 is rounded to the nearest thousand, how many zeros does the rounded number have?

sladkih [1.3K]

3 because u keep the number Wich is 8 the same but change the three to four

8 0

4 years ago

Read 2 more answers

All of the following are equivalent expect <br><br>A. 8x+3x<br>B. (8+3)x<br>C. 11x<br>D. 11x2

Andrej [43]

<span>A. 8x+3x = 11x
B. (8+3)x = 11x
C. 11x = 11x
D. 11x^2 = 11x^2

answer

</span><span>D. 11x^2</span>

7 0

3 years ago