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2 years ago

How many solutions does the system of inequalities graphed below have?

Mathematics

1 answer:

kompoz [17]2 years ago

4 0

I would say D) Infinitely many.

The question is slightly confusing but what I can tell is there are at least 3 points on the graph that are touched so it can't be asking about that since we have answers like 0, 1 and 2.

So next, we can look at the slopes aka how far the lines reach and cross. They seem to keep going on and on without stopping at any visible point on the graph. So you can say there are infinitely many solutions with any real number.

You might be interested in

The amount of time the husband and the wife spend on house work is measured for 15 women and their 15 husbands. For the wives th

dolphi86 [110]

Answer:

The value of the test statistic is z = -0.877.

Step-by-step explanation:

Testing the difference in mean time spent on housework between husbands and wives.

At the null hypothesis, we test if there is no difference, that is, the subtraction of the means is 0:

$H_0: \mu_H - \mu_W = 0$

At the alternate hypothesis, we test if there is a difference, that is, the subtraction of the means is different from 0.

$H_1: \mu_H - \mu_W \neq 0$

The test statistic is:

$z = \frac{X - \mu}{s}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, and s is the standard error.

0 is tested at the null hypothesis:

This means that $\mu = 0$

For the wives the mean was 7 hours/week and for the husbands the mean was 4.5 hours/week. The standard deviation of the differences in time spent on house work was 2.85.

This means that $X = 4.5 - 7 = -2.5, s = 2.85$

What is the value of the test statistic for testing the difference in mean time spent on housework between husbands and wives?

$z = \frac{X - \mu}{s}$

$z = \frac{-2.5 - 0}{2.85}$

$z = -0.877$

The value of the test statistic is z = -0.877.

4 0

2 years ago

Is how old are you? a statistical question

HACTEHA [7]

Answer:

Hey!

NO IT IS NOT A STATISTICAL QUESTION!

Step-by-step explanation:

This is because you are including ONLY YOU...this wont work as statistics take data from a COLLECTION of people or things!

So a better question will be :

HOW OLD ARE THE PEOPLE IN MY NEIGHBORHOOD?

(averages)

HOPE THIS HELPS!!

5 0

2 years ago

find two numbers, both smaller than 100, that have common multiple of 450 and highest common factor of 15

Alex_Xolod [135]

Answer:

hello :

90 = 15×6

75 = 15× 5

highest common factor of 90 and is 15 because highest common factor of 5 and 6 is 1

90 = 3² ×2×5

75= 5^3

common multiple of 90 and 75 is : 3²×2×5² = 450

90 and 75 both smaller than 100.

3 0

3 years ago

Can you have a right triangle where the lengths of the legs are whole numbers and the length of the hypotenuse is 23? Explain.

dezoksy [38]

No you can't because a right angle is 90

7 0

2 years ago

Read 2 more answers

Which answer is correct

andre [41]

Hello from MrBillDoesMath!

Answer:

The first choice, Pi + (-Pi) = 0

Discussion:

Pi is an irrational number. Saying the irrational numbers are closed under addition means if we add two irrational numbers we will get another irrational number. In our case, Pi + (-Pi) = 0, which is correct, BUT 0 is a rational number. This shows the set of irrational numbers is NOT closed under addition.

Thank you,

MrB

7 0

3 years ago