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
vredina [299]
2 years ago
8

3x -y =6 solve for x

Mathematics
1 answer:
Oduvanchick [21]2 years ago
4 0

Answer: the answer is

Step-by-step explanation:

You might be interested in
I am confused. The entire question is in the picture.
a_sh-v [17]
Well yes, but it’s in order. The picture will help you solve the questions, the questions are listed in a order so in order to get one question right you have to solve for another question. Like do question 1 before 2 , go in order
8 0
3 years ago
19. PLEASE HELP ME
Licemer1 [7]

Answer:

D. y= -1/5x2, y= -1/3x2, y= -7x2

Step-by-step explanation:

8 0
3 years ago
The U.S. and many other countries have recently tightened airport security. A sociologist is interested in estimating the propor
melisa1 [442]

Answer:

0.0073 < 0.05, which means that we reject the null hypothesis and conclude that the true proportion of interest is higher than 0.7.

Step-by-step explanation:

Conduct a test to determine whether the true proportion of interest is higher than 0.7.

This means that the null hypothesis is: H_{0}: p = 0.7

And the alternate hypothesis is: H_{a}: p > 0.7

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

0.7 is tested at the null hypothesis:

This means that \mu = 0.7, \sigma = \sqrt{0.7*0.3}

The sociologist found that 375 of the 500 travelers randomly selected and interviewed indicated that the airports were safe.

This means that n = 500, X = \frac{375}{500} = 0.75

Value of the z-statistic:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{0.75 - 0.7}{\frac{\sqrt{0.7*0.3}}{\sqrt{350}}}

z = 2.44

P-value of the test:

Probability of z being larger than 2.44, that is, a proportion larger than 0.75.

This is, looking at the z-table, 1 subtracted by the pvalue of Z = 2.44. S

Z = 2.44 has a pvalue of 0.9927

1 - 0.9927 = 0.0073

0.0073 < 0.05, which means that we reject the null hypothesis and conclude that the true proportion of interest is higher than 0.7.

8 0
3 years ago
I will mark brainlest
vodka [1.7K]

20 Square units jit. now give me brainliest.

3 0
2 years ago
Find ex and Y to the quadrilateral is a parallelogram.
Tomtit [17]
The diagram is y because it is y to that is because ahhh
6 0
3 years ago
Other questions:
  • If y varies directly as x, and y is 6 when x is 72, what is the value of y when x is 8? A) 1/9 B) 2/3 C) 54 D) 96
    12·1 answer
  • 50 POINTS! + BRAINLIEST! PLEASE HELP
    14·2 answers
  • Please solve, will give brainliest <br><br> describe the pattern: 5, 7.5, 11.25, 16.875
    11·2 answers
  • The sum of two is 88. one number is 40 more then the other. Find the numbers
    6·2 answers
  • 3. Solve the inequality –2(z + 5) + 20 &gt; 6.
    12·1 answer
  • if a number is increased by 5 and the result is then divided by 3, the result is 7. write an equation.
    12·1 answer
  • A family has two cars. The first car has a fuel efficiency of 40 miles per gallon of gas and the second has a fuel efficiency of
    7·1 answer
  • Which equation represents a circle with a center at (–3, –5) and a radius of 6 units?
    14·1 answer
  • Can someone help me please I really need help please help meee I’m struggling I WILL HELP YOU WITH YOUR ASSIGNMENT IF YOU HELP M
    10·1 answer
  • Find the range for these numbers.<br><br><br><br> 12, 9, 24, 24, 37, 18, 9, 6, 24
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!