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
solong [7]
3 years ago
10

The point (0,0) is a solution to which of these inequalities?

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
3 0
D because -4 is greater than -5
You might be interested in
A government report gives a 99% confidence interval for the proportion of welfare recipients who have been receiving welfare ben
juin [17]

Answer:

The estimation for the proportion for this case is \hat p = 0.21

And we know that the 99% confidence interval is given by:

0.21 \pm 0.045

So then the margin of error at 99% of confidence is 0.045, and the margin of error is given by this formula:

ME= z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}  

If we decrease the confidence level this margin of error can't be higher than 0.045 so then the correct answer for this case would be:

d. 21% ± 4.8%

Because if the z value decrease from 2.58 to 1.96 not makes sense that the margin of error increase from 0.045(4.5%) to 0.048(4.8%)

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

Solution to the problem

The population proportion have the following distribution  

p \sim N(p,\sqrt{\frac{\hat p(1-\hat p)}{n}})  

The confidence interval would be given by this formula  

\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}  

For the 95% confidence interval the value of \alpha=1-0.95=0.05 and \alpha/2=0.025, with that value we can find the quantile required for the interval in the normal standard distribution.  

z_{\alpha/2}=1.96

For the 99% confidence interval the value of \alpha=1-0.99=0.01 and \alpha/2=0.005, with that value we can find the quantile required for the interval in the normal standard distribution.  

z_{\alpha/2}=2.58

The estimation for the proportion for this case is \hat p = 0.21

And we know that the 99% confidence interval is given by:

0.21 \pm 0.045

So then the margin of error at 99% of confidence is 0.045, and the margin of error is given by this formula:

ME= z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}  

If we decrease the confidence level this margin of error can't be higher than 0.045 so then the correct answer for this case would be:

d. 21% ± 4.8%

Because if the z value decrease from 2.58 to 1.96 not makes sense that the margin of error increase from 0.045(4.5%) to 0.048(4.8%)

5 0
3 years ago
Solve the system using the substituiton method<br> branliest offered<br> 3x-7y=10<br> x-4y=5
fiasKO [112]
Hi there!

To solve this problem using substitution, we need to set x equal to a value and substitute it into the other equation.

Since
x - 4y = 5,
x = 5 + 4y

3x - 7y = 10
3(5 + 4y) - 7y = 10
15 + 12y - 7y = 10
15 + 5y = 10
5y = -5
y = -1

Now that we know y is -1, we can substitute it back into the equation to find x:

y = -1
x - 4y = 5
x - 4(-1) = 5
x - (-4) = 5
x + 4 = 5
x = 1

So, your answers are x = 1 and y = -1.

Hope this helps!
6 0
2 years ago
Recently, Frank took a one-hundred question aptitude test where each correct answer scored 5 points, each incorrect answer score
Lyrx [107]
Im guessing he answered 30 correct, let me know if im correct
3 0
3 years ago
Read 2 more answers
Rename 4,180 as hundreds and tens
My name is Ann [436]
Four thousand one hundred eighty
6 0
3 years ago
Can anyone answer this problem in their head. No calculator or paper.
rodikova [14]
7,393,420,225 is the answer tk the problem without using calculator.
7 0
3 years ago
Other questions:
  • PLS HELP ME ASAP GUYS FOR 1, 2, and 3 PLS (SHOW WORK!!) + LOTS OF POINTS!
    8·1 answer
  • What is the slope and y intercept of the line 4x-2y=7
    9·2 answers
  • *HIGH POINT QUESTION* if 6x = 12, and xy = 6, then what is 12y? Please answer!
    13·2 answers
  • How do you solve this problem 4 5/10 + 6 9/10=
    9·2 answers
  • At the state fair 4 employees Where are paid $18.18 and hour they work for 10 hours at regular price and then for three hours an
    5·1 answer
  • What is the distance between (-4,8) and (12,8) on a coordinate plane?
    7·1 answer
  • Which expression is not equivalent to the other expressions?
    7·1 answer
  • find the equation of the straight line which has a gradient of 3 and passes through the point (-1, 3)
    9·1 answer
  • Please help (question is in the attachment) :(
    11·2 answers
  • 8 (2/3) divided by (-104/33)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!