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
Mademuasel [1]
3 years ago
12

Given the point (2,3) and the slope of 4 ,find y when x=22

Mathematics
2 answers:
Ugo [173]3 years ago
5 0

The answer is y = 83

Mariulka [41]3 years ago
4 0
Y - y₁ = m(x - x₁)
 y - 3 = 4(22 - 2)
 y - 3 = 4(20)
 y - 3 = 80
   + 3  + 3
     y = 83
You might be interested in
Please help i can’t figure out the scale factor on these polygons
Pani-rosa [81]

Answer: Scale of 2:1

Step-by-step explanation:

All the angles are the same. So its the same polygon just bigger.

Line DA multiplied by a factor of 2 will make is as long as Line ZW.

Line AB multiplied by 2 will also make it equal to Line WX

From that we can assume that Lines XY and YZ are equal to Lines BC and CD

5 0
2 years ago
A survey asks, "If the husband in a family wants children, but the wife decides that she does not want any children, is it all r
vodka [1.7K]

Answer:

a. The 99% confidence interval for the population proportion is (0.7872, 0.8610).

D. Yes, we can conclude that the population proportion exceeds 75% because 75% is below the lowest believable value of the confidence interval.

b. The 99% confidence interval would be wider than a 95% confidence interval.

As the confidence level increases, the width interval increases, as we are requiring more confidence with the same information (there is no new sample). This means that, to be more confident, the only way is to include more values in the interval.

Step-by-step explanation:

We have to calculate a 99% confidence interval for the proportion.

The sample proportion is p=0.8241.

p=X/n=581/705=0.8241

The standard error of the proportion is:

\sigma_p=\sqrt{\dfrac{p(1-p)}{n}}=\sqrt{\dfrac{0.8241*0.1759}{705}}\\\\\\ \sigma_p=\sqrt{0.000206}=0.0143

The critical z-value for a 99% confidence interval is z=2.5758.

The margin of error (MOE) can be calculated as:

MOE=z\cdot \sigma_p=2.5758 \cdot 0.0143=0.0369

Then, the lower and upper bounds of the confidence interval are:

LL=p-z \cdot \sigma_p = 0.8241-0.0369=0.7872\\\\UL=p+z \cdot \sigma_p = 0.8241+0.0369=0.8610

The 99% confidence interval for the population proportion is (0.7872, 0.8610).

We can conclude that there is, at least, 99% chances that the true proportion is higher than 0.7872. So there is at least 99% chances that the population proportion is higher than 0.75.

4 0
3 years ago
A TV is on sale for $125 off. The sale price is $875. Which expression equals the original price in dollars?
Tems11 [23]
(875+125)=1000 so thats the answer
5 0
3 years ago
Read 2 more answers
Which is the simplified form of r^-7+s^-12
Mashutka [201]

It is simplified.

Step-by-step explanation:

Well, r^-7 is bassically 1/r^7
same thing for s
s is bassically 1/s^12

So 1/s^12 + 1/r^7

3 0
2 years ago
27% of the bowling balls were too heavy for Fred. If Fred had 511 to choose from, how many bowling balls were there in total?
mestny [16]

Answer:

Fred is weak

Step-by-step explanation:

Fred is weak

3 0
3 years ago
Read 2 more answers
Other questions:
  • Mrs. Byrne's class went raspberry picking. The data show the weights of the cartoons of raspberries the students picked. Make a
    7·1 answer
  • One teacher wants to give each student 4/3 slices of pizza. If the teacher has 20 slices of pizza, then how many students will s
    11·1 answer
  • 3. Jada has a coin jar containing n nickels and d dimes worth a total of $3.65. The
    9·1 answer
  • Math 100 points ill give brainliest as well
    7·2 answers
  • Solve the system of equations below by elimination. -2x-4y=-4 -x+7y=-20
    12·1 answer
  • Someone Please help me!!
    6·1 answer
  • The sum of two numbers is 44 and the difference is 14. What are the numbers?
    8·2 answers
  • What is the solution to this inequality?<br><br> −4x−8&gt;−20
    10·1 answer
  • Giving brainlist for the correct answer
    7·2 answers
  • Helpppppppppppppppppppp
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!