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
Marizza181 [45]
3 years ago
15

When there is a positive trend (or positive correlation), do the y-values of the points on the scatter plot tend to increase or

decrease as the x-values increase?
Mathematics
2 answers:
mestny [16]3 years ago
7 0
As the x-values increase, y-values should decrease as the rule for positive correlations is that while one variable increases the other one decreases. In this problem's case, the x values are increasing therefore, the y values must decrease or it would not be a positive correlation. 
Assoli18 [71]3 years ago
4 0
As the y-axes decreases the x-axes increases 

You might be interested in
Find the radius and height of a cylindrical soda can with a volume of 256cm^3 that minimize the surface area.
Shtirlitz [24]

Answer:

A) Radius: 3.44 cm.

Height: 6.88 cm.

B) Radius: 2.73 cm.

Height: 10.92 cm.

Step-by-step explanation:

We have to solve a optimization problem with constraints. The surface area has to be minimized, restrained to a fixed volumen.

a) We can express the volume of the soda can as:

V=\pi r^2h=256

This is the constraint.

The function we want to minimize is the surface, and it can be expressed as:

S=2\pi rh+2\pi r^2

To solve this, we can express h in function of r:

V=\pi r^2h=256\\\\h=\frac{256}{\pi r^2}

And replace it in the surface equation

S=2\pi rh+2\pi r^2=2\pi r(\frac{256}{\pi r^2})+2\pi r^2=\frac{512}{r} +2\pi r^2

To optimize the function, we derive and equal to zero

\frac{dS}{dr}=512*(-1)*r^{-2}+4\pi r=0\\\\\frac{-512}{r^2}+4\pi r=0\\\\r^3=\frac{512}{4\pi} \\\\r=\sqrt[3]{\frac{512}{4\pi} } =\sqrt[3]{40.74 }=3.44

The radius that minimizes the surface is r=3.44 cm.

The height is then

h=\frac{256}{\pi r^2}=\frac{256}{\pi (3.44)^2}=6.88

The height that minimizes the surface is h=6.88 cm.

b) The new equation for the real surface is:

S=2\pi rh+2*(2\pi r^2)=2\pi rh+4\pi r^2

We derive and equal to zero

\frac{dS}{dr}=512*(-1)*r^{-2}+8\pi r=0\\\\\frac{-512}{r^2}+8\pi r=0\\\\r^3=\frac{512}{8\pi} \\\\r=\sqrt[3]{\frac{512}{8\pi}}=\sqrt[3]{20.37}=2.73

The radius that minimizes the real surface is r=2.73 cm.

The height is then

h=\frac{256}{\pi r^2}=\frac{256}{\pi (2.73)^2}=10.92

The height that minimizes the real surface is h=10.92 cm.

7 0
4 years ago
The integer that represents 30 degrees below zero
fredd [130]

Answer:

-30?

Step-by-step explanation:


7 0
3 years ago
Using the formula below or Excel, find the correlation coefficient, r, for this set of scores. Answer choices are rounded to the
RideAnS [48]

The correlation coefficient measures the relationship between the two variables

The correlation coefficient is 0.234

<h3>How to determine the correlation coefficient</h3>

The formula of correlation coefficient is:

r = \frac{1}{n - 1} * \sum{(\frac{x - \bar x}{\sigma_x})*(\frac{y - \bar y}{\sigma_y})

Using the dataset from the complete question, we have:

r = \frac{1}{5 - 1} * 0.9375

Evaluate the difference

r = \frac{1}{4} * 0.9375

Evaluate the quotient

r = 0.234375

Approximate

r = 0.234

Hence, the correlation coefficient is 0.234

Read more about correlation coefficient at:

brainly.com/question/4219149

3 0
2 years ago
What is theoretical probability of pulling a green marble out of the bag?
BlackZzzverrR [31]
I believe the theoretical probability is 5/20. Or 25%.
6 0
3 years ago
What is 2,400 milliliters converted into liters
BARSIC [14]

Answer:

2.4 liters

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
Other questions:
  • Please answer this correctly please label the numbers correctly and please write the answers correctly
    7·1 answer
  • Solving algebraic equations:<br><br> 5n+1<br><br> What do I do to solve this?
    7·1 answer
  • Hera wants to find the volume of the rectangular prism shown below. Which equation could Hera use to find V, the volume of the r
    12·1 answer
  • Write two hundred three and forty two hundredths in standard form and expanded form
    14·2 answers
  • Paulo had 2 1/4 feet of red twine. he had 1 5/12 feet of blue twine. he used some twine for a craft. he has 1 11/12 feet of twin
    15·2 answers
  • Find the mean of the data in the bar chart below
    5·2 answers
  • Determine whether the function is growth or decay AND its percentage of growth or decay.
    9·2 answers
  • The algebraic expression 0.07d^3/2 describes the duration of a storm, in hours, whose diameter is d miles. use a calculator to d
    13·1 answer
  • I need help with my final, it's my last grade
    10·2 answers
  • Pls decipher the code. Will give brainliest for correct answer tyyyyy
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!