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
aliina [53]
3 years ago
5

Please help me thank you

Mathematics
1 answer:
ahrayia [7]3 years ago
4 0

Answer:

(2,3)

Step-by-step Explanation:

2x - y = 1

-y = -2x + 1

y = 2x - 1

4x + y = 11

4x + 2x -1 = 11

6x = 12

x=2

y=2x-1

y=2(2)-1

y=3

You might be interested in
Sara started her homework at 5:30pm and finished it at 6:15pm.how much time did she take to finished her homework
Neporo4naja [7]

Answer:

she took 45 mins on homework.

4 0
3 years ago
Read 2 more answers
Determine the equation of a line in standard form that represents Kelsa’s training progress. Her progress corresponds to the poi
UkoKoshka [18]

We first get the gradient of the equation of a line by taking the change in y over change in x

Hence our gradient will be

(6-9.5)/(8-1)=-3.5/7=0.5

Taking an arbitrary point(x,y) and using our gradient we get and one of the points above we get

(y-6)/(x-8)=0.5

y-6=0.5*(x-8)

y-6=0.5x-4

y=0.5x+2 or y=1/2x+2

which is the line of our equation the answer we are asked for.

 

 

<span> </span>

3 0
4 years ago
If 96 of the 224 participants in club activities are residents, what is the ratio of nonresidents to residents who participate i
love history [14]
First you subtract the 224 total people with the 96 residents to find the nonresidents which is 128 to 96 residents and that simplified is 4:3. So it is 4:3
6 0
3 years ago
The diameter of a spindle in a motor is supposed to be 40 mm with standard deviation of 0.5 mm. If the spindle is either too sma
grandymaker [24]

Answer:

It can be used the confidence interval to check the idea.

The confidence interval tells us that the real mean is expected to be between 40.2 and 40.4, with a 95% of confidence.

We can conclude that the mean diameter has moved away from the target value.

Step-by-step explanation:

A method to determine wether the mean diameter has moved away from the target is to calculate a confidence interval over the mean.

This would let us know if the real mean diameter could be 40 mm or not.

If the confidence interval does not include the value 40 mm, we can claim that the mean diameter has moved from the target value.

We will calculate a 95% confidence interval (CI), for which the z-value is z=1.96.

The margin of error is:

E=z*\sigma/\sqrt{n}=1.96*0.5/\sqrt{100}=0.098\approx 0.1

Then, the upper and lower limits of the CI are:

UL=\bar x+z*\sigma/\sqrt{n}=40.3+0.1=40.4\\\\\\ LL=\bar x-z*\sigma/\sqrt{n}=40.3-0.1=40.2

The confidence interval tells us that the real mean is expected to be between 40.2 and 40.4, with a 95% of confidence.

We can conclude that the mean diameter has moved away from the target value.

8 0
4 years ago
In which of the following intervals is the graph decreasing?
Zepler [3.9K]

Answer:

I just need points to ask my own question sorry

6 0
3 years ago
Other questions:
  • Circle D is shown with the measures of the minor arcs. Which angles are congruent?
    15·2 answers
  • Can anyone please help me with this I have to get it done before tomorrow
    13·1 answer
  • A ball is thrown upward from the top of a building. the function below shows the height of the ball in relation to sea level, ft
    10·2 answers
  • Ruby will buy3 ivory silk lilac trees or 2 bur oak trees. He wants to buy the trees that cost less. What trees will he buy? How
    6·1 answer
  • Pls help!!!
    13·1 answer
  • There are 50 jellybeans in a bag.
    10·1 answer
  • - 1/6 <br> Find the slope of the line.<br><br> A. -1/6 <br><br> B. 1/6 <br><br> C. -6 <br><br> D. 6
    8·2 answers
  • Helpppppppppppppppppppp
    9·1 answer
  • A+4&lt;9 solve the inequality
    9·1 answer
  • Find the length of EG.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!