1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kirill [66]
3 years ago
6

When you solve a problem involving money, what can a negative number represent

Mathematics
2 answers:
9966 [12]3 years ago
5 0
The amount of money you owe
GaryK [48]3 years ago
3 0
The negative number can represent debt or how much they owe to somebody.
You might be interested in
Z + 6 over 3 = 2z over 4
Black_prince [1.1K]
    \frac{z + 6}{3} = \frac{2z}{4}   Multiply both sides by 3
    z + 6 = \frac{(3)2z}{4}   Multiply both sides by 4
(4)z + 6 = (3)2z   Simplify
4z + 24 = 6z   Subtract 4z from both sides
        24 = 2z   Divide both sides by 2
         12 = z     Flip the sides to make it easier to read
          z = 12
7 0
3 years ago
The standard deviation of math test scores at one high school is 16.1. A teacher claims that the standard deviation of the girls
Elanso [62]

Answer:

\chi^2 =\frac{22-1}{259.21} 166.41 =13.482

p_v =P(\chi^2

In order to find the p value we can use the following code in excel:

"=CHISQ.DIST(13.482,21,TRUE)"

If we compare the p value and the significance level provided we see that p_v >\alpha so on this case we have enough evidence in order to FAIL reject the null hypothesis at the significance level provided. And that means that the population deviation is not significantly lower than 16.1 at 1% of significance.

Step-by-step explanation:

Notation and previous concepts

A chi-square test is "used to test if the variance of a population is equal to a specified value. This test can be either a two-sided test or a one-sided test. The two-sided version tests against the alternative that the true variance is either less than or greater than the specified value"

n=22 represent the sample size

\alpha=0.01 represent the confidence level  

s^2 =12.9^2=166.41 represent the sample variance obtained

\sigma^2_0 =16.1^2 =259.21 represent the value that we want to test

Null and alternative hypothesis

On this case we want to check if the population deviation is smaller than 16.1 (that's equivalent to check if the population variance is lower than 259.21:

Null Hypothesis: \sigma^2 \geq 259.21

Alternative hypothesis: \sigma^2

Calculate the statistic  

For this test we can use the following statistic:

\chi^2 =\frac{n-1}{\sigma^2_0} s^2

And this statistic is distributed chi square with n-1 degrees of freedom. We have eveything to replace.

\chi^2 =\frac{22-1}{259.21} 166.41 =13.482

Calculate the p value

In order to calculate the p value we need to have in count the degrees of freedom , on this case 21. And since is a left tailed test the p value would be given by:

p_v =P(\chi^2

In order to find the p value we can use the following code in excel:

"=CHISQ.DIST(13.482,21,TRUE)"

Conclusion

If we compare the p value and the significance level provided we see that p_v >\alpha so on this case we have enough evidence in order to FAIL reject the null hypothesis at the significance level provided. And that means that the population deviation is not significantly lower than 16.1 at 1% of significance.

3 0
3 years ago
Simplify 2.19g + 0.59b + 1.49p
kozerog [31]

Answer:  it can't be simplified,,, the variables are all different

Step-by-step explanation:

6 0
3 years ago
Help me please!Please look at the pic then tell me if im wrong on something.Thank you! :)
Murrr4er [49]

Answer: for every 3 triangles there are 5 squares. not 4. so the ratio is 3:5.

could you give me brainliest pls?

6 0
2 years ago
What number makes the equation true? [???] ÷ 8 = 4​
Elina [12.6K]

Answer:

32

Step-by-step explanation:

math

................

3 0
2 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
    11·2 answers
  • What is the best name for angle Y
    13·1 answer
  • Use the graph to estimate the height of a jugglers ball that has been in the air for 1.5 seconds
    12·1 answer
  • Please help by solving with method. Thanks ​
    14·2 answers
  • Can some one pls help me with these questions it is really argent
    9·1 answer
  • What ratio will have a trail with 7:2
    14·2 answers
  • Is anybody a hacker I’m looking for somebody to hack someone’s Tikto make sure they ain’t cheating on me?
    7·1 answer
  • Proving parallel lines. Find the value of x so that l // m. State the converse worksheet due tomorrow help please.
    8·1 answer
  • Figure JKLM is a parallelogram. The measures of line segments MT and TK are shown.
    12·2 answers
  • 2. (01.01)<br> Evaluate 32+(5-2)-4-<br> O 19<br> O 16<br> O 46<br> 24<br> 3<br> . (1 point)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!