All categories

3 years ago

PLEASE HELP ASAP! D:

Mathematics

1 answer:

artcher [175]3 years ago

8 0

The solution to a system of equations is the point where the 2 lines of a graph cross each other.

On the pictured graph, the lines cross each other at x = -6 and Y = -2.

The answer would be (-6,-2)

You might be interested in

Is x = 1 a function?

Pie

Yes x = 1 is a function.
Hope this helps :(

3 0

3 years ago

Read 2 more answers

Complete the square for the function f(x) = x² - 4x + 6. What is the minimum point on a graph of this function?

AVprozaik [17]

Answer:

2,2

Step-by-step explanation:

f(x)=(x-2)^2+2

=2,2

4 0

3 years ago

Can anyone help me with these questions there is a photo of them the question of the triangle is find the value of a

Olin [163]

13. a^2+7^2=15^2

a^2+49=225

-49=-49

a^2=176

a=13.266

14. 4 more girls chose soccer over softball.

15. I think it's a negative correlation or you have to find dots that can make a line

16. 3

4 0

4 years ago

he Nassau Bahamas Community College (NBC) claims that students who take statistics spend on average 19 hours a week working. The

Virty [35]

Using the t-distribution, it is found that since the test statistic is greater than the critical value for the right-tailed test, it is found that there is enough evidence to conclude that the students' claim that they work more than 19 hours is correct.

At the null hypothesis, it is tested if they spend on average 19 hours a week working, that is:

$H_0: \mu = 19$

At the alternative hypothesis, it is tested if they spend more than 19 hours a week working, that is:

$H_1: \mu > 19$

We have the standard deviation for the sample, hence, the t-distribution is used.

The test statistic is given by:

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

The parameters are:

$\overline{x}$ is the sample mean.

$\mu$ is the value tested at the null hypothesis.

s is the standard deviation of the sample.

n is the sample size.

Searching the problem on the internet, it is found that the values of the parameters are:

$\overline{x} = 24.2, \mu = 19, s = 12.59, n = 25$

Hence, the value of the test statistic is:

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

$t = \frac{24.2 - 19}{\frac{12.59}{\sqrt{25}}}$

$t = 2.07$

The critical value for a right-tailed test, as we are testing if the mean is greater than a value, with a significance level of 0.05 and 25 - 1 = 24 df is of $t^{\ast} = 1.71$

Since the test statistic is greater than the critical value for the right-tailed test, it is found that there is enough evidence to conclude that the students' claim that they work more than 19 hours is correct.

To learn more about the t-distribution, you can take a look at brainly.com/question/13873630

3 0

3 years ago

List these number least to greatest -3/5,-0.75,-80%,-6/8

Brums [2.3K]

-80%(-.8),-.75,-6/8(-.75),-3/5(-.6)

3 0

4 years ago