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
Shkiper50 [21]
3 years ago
11

HELP PLEASE! I need helpppp!! :(

Mathematics
2 answers:
tresset_1 [31]3 years ago
5 0
The equation has the greatest slope!

Hopeful it’s correct! sorry i’m not a genius:)
Troyanec [42]3 years ago
3 0
A I think is correct but double check that I’m not sure
You might be interested in
Which inequalities are true? Check all that apply.<br> (pic attached)
Alborosie

Answer:

first, last and 4th one

4 0
3 years ago
Read 2 more answers
Bai is conducting a study on learning. When she manipulates an independent variable, it is possible that some other factor, such
nlexa [21]

Answer:

The answer is : b) a confound

Step-by-step explanation:

While manipulating, is possible that some factors like noise in the hall, can affect learning in one of the groups but not in the other.

This possibility reflects the presence of a confound.

We can define a confounding variable as an external influencing factor which results in bringing changes in the effects of a dependent and independent variable.

This variable changes the outcome of an experiment and produces useless results.

3 0
3 years ago
What is the area of the figure below?
murzikaleks [220]
96m^2 is your answer

6 0
3 years ago
Read 2 more answers
The number of motor vehicles registered in millions in the US has grown as follows:
zysi [14]

Answer:

a) Figure attached

b) r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}  

For our case we have this:

n=10 \sum x = 75.819, \sum y = 43.5231, \sum xy = 330.0321, \sum x^2 =574.8598, \sum y^2 =192.8274  

r=\frac{10(330.0321)-(75.81948)(43.5231)}{\sqrt{[10(574.8598) -(75.819)^2][10(192.8274) -(43.5231)^2]}}=0.989  

So then the correlation coefficient would be r =0.989

Step-by-step explanation:

Previous concepts

The correlation coefficient is a "statistical measure that calculates the strength of the relationship between the relative movements of two variables". It's denoted by r and its always between -1 and 1.

Solution to the problem

Part a

Year (x): 1940, 1945 1950, 1955, 1960, 1965, 1970, 1975, 1980, 1985

Vehicles (Y): 32.4, 31.0, 49.2, 62.7, 73.9, 90.4, 108.4, 132.9, 155.8, 171.7

After apply natural log for the two variables and create the scatterplot in excel we got the following result on the figure attached.

Part b

And in order to calculate the correlation coefficient we can use this formula:  

r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}  

For our case we have this:

n=10 \sum x = 75.819, \sum y = 43.5231, \sum xy = 330.0321, \sum x^2 =574.8598, \sum y^2 =192.8274  

r=\frac{10(330.0321)-(75.81948)(43.5231)}{\sqrt{[10(574.8598) -(75.81948)^2][10(192.8274) -(43.5231)^2]}}=0.989  

So then the correlation coefficient would be r =0.989

4 0
3 years ago
Is there a dilation that maps shape I onto shape II? If so, what is the scale factor, and is it an enlargement or a reduction?
katrin2010 [14]

Answer:

Enlargement.

Scale Factor: 3

Step-by-step explanation:

Use points to find the enlargement. Typically, you will use all the points.

A(1 , 1) ⇒ A'(3 , 3)

B(2 , 1) ⇒ B'(6 , 3)

C(1 , 2) ⇒ C'(3 , 6)

D(2 , 2) ⇒ D'(6 , 6)

To find the scale factor, simply divide the Point' with the original Point. Use any number.

A'(3 , 3)/(A(1 , 1)) = 3

B'(6 , 3)/(B(2 , 1)) = 3

C'(3 , 6)/(C(1 , 2)) = 3

D'(6 , 6)/(D(2 , 2)) = 3

Your scale factor is 3.

~

6 0
3 years ago
Other questions:
  • Hector waters his lawn if it does not get least 1 1/2 inches of rain each week. it has rained 3/8 inch already this week. which
    15·2 answers
  • Multiply. Enter your answer in scientific notation.
    12·1 answer
  • The total amount of money in a savings account after t years is given by the function A=1000(1.023)^t .
    14·2 answers
  • PLEASE HELP ME :(
    9·1 answer
  • A recipe uses 3 eggs for every 8 cups of flour. What is the ratio of eggs to flour in the recipe?
    14·2 answers
  • What is7 times 500 using compatible numbers
    6·1 answer
  • I need help again thanks it's the picture ​
    8·1 answer
  • Ted's class collects aluminum cans to sell to the recycling center. The center pays $0.002 for each kilogram of aluminum.Write a
    7·1 answer
  • Please help it will be fast and easy
    14·1 answer
  • Each column of the matrix represents a vertex of a triangle. If Rosa scales the triangle by finding 3T
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!