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
murzikaleks [220]
3 years ago
15

Please help me? I’ll give brainliest

Mathematics
2 answers:
Svetllana [295]3 years ago
7 0

Answer:

left 4 up one because the coordinates are -4 , 1

tangare [24]3 years ago
3 0

Answer:

the first one (-4, 1)

Step-by-step explanation:

You might be interested in
100 POINTS! IF YOU ANSWER THESE 5 QUESTIONS CORRECTLY :)
Sergeeva-Olga [200]

1. Use a computer to randomly select 30 student IDs from all her students2. If the ice cream store owner asks 2300 people, will most likely pick cheesecake to be the flavor of the month.3. I would need the line plot4. I would need the graph to solve5. I would need the graph to solveClick to let others know, how helpful is it


Read more on Brainly.com - brainly.com/question/3239357#readmore

5 0
3 years ago
Read 2 more answers
Suppose the heights of a population of people are normally distributed with a mean of 65.5 inches and a standard deviation of 2.
kupik [55]

Answer:

a) P(64.2

b) 69.764

Step-by-step explanation:

1) Previous concepts

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".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

2) Part a

Let X the random variable that represent the heights of a population, and for this case we know the distribution for X is given by:

X \sim N(65.5,2.6)

Where \mu=65.5 and \sigma=2.6

We are interested on this probability

P(64.2

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(64.2

And we can find this probability on this way:

P(-0.50

And in order to find these probabilities we can find tables for the normal standard distribution, excel or a calculator.

P(-0.50

3) Part b

For this part we want to find a value a, such that we satisfy this condition:

P(X>a)=0.05   (a)

P(X   (b)

Both conditions are equivalent on this case. We can use the z score again in order to find the value a.

As we can see on the figure attached the z value that satisfy the condition with 0.95 of the area on the left and 0.05 of the area on the right it's z=1.64. On this case P(Z<1.64)=0.95 and P(z>1.64)=0.05

If we use condition (b) from previous we have this:

P(X  

P(z

But we know which value of z satisfy the previous equation so then we can do this:

z=1.64

And if we solve for a we got

a=65.5 +1.64*2.6=69.764

So the value of height that separates the bottom 95% of data from the top 5% is 69.764.

5 0
3 years ago
Cheryl wants to find the number of hours seventh-graders do homework each week. There are 297 boys and girls in seventh grade. I
Dafna1 [17]
There are a total of 297 students in the 7th grade. Rough estimates would say that about half of that number are boys and half are girls. Asking only 50 random girls would be biased because not only would it not be all of the girls (the number of girls would be around 148 or 149) but it would also be ignoring the roughly 148 to 149 boys there are on estimate. The sample would be biased because it would be ignoring the opinions of more than half the seventh grade.
8 0
3 years ago
Read 2 more answers
What 12/12+12/12+8/12=
Fudgin [204]

Answer:

8/3

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
I need this question done by March 4,2019<br><br> What is the answer to<br> a + 2 = 5 + 4a ?
Ronch [10]
A = -1

Hope this is right

3 0
3 years ago
Read 2 more answers
Other questions:
  • (3x+9)^5=32x^5<br> help solve for x
    9·2 answers
  • Can a line segment have two midpoints ?
    6·2 answers
  • Someone please help.
    8·1 answer
  • 10 members on the chess team have to play twice against everyone one the team how many games will need to o be played
    7·1 answer
  • 2y is greater then or equal to 3x minus 16
    14·2 answers
  • Determine if the following point is a solution to the system of equations:
    13·1 answer
  • Rationalize the denominator :<br><br> 14 - √7 / √7
    9·2 answers
  • Your friend has one week to pay the $26 fine for a parking ticket. After that, the fine Increases $7 each week. ​
    10·1 answer
  • Covent 13/10 to a mixed number
    13·1 answer
  • The expression 20x + 30 represents the area of the figure below. Use distributive property to find the dimensions.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!