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
Alex17521 [72]
3 years ago
14

What is the exponential regression equation that fits these data?

Mathematics
2 answers:
zlopas [31]3 years ago
6 0

Answer:

Option B) y = (1.31)(2.8^{x}) is the correct option.

Step-by-step explanation:

<em>Exponential function is the one where, a constant is raised to the power of x, a independent variable.</em>

Here, only option B and D are such exponential functions, while option A is linear and option C is quadratic in nature.

Now, to verify which option is correct, we will input the values and check which has the least difference between the given values.

Or we can use the cost function,

J = \frac{((y(i))-y)^2}{2m} , to find which function has the least error.

By applying the above results,we find Option B is correct.

Lorico [155]3 years ago
3 0

Answer:

Correct Answer B

Step-by-step explanation:

You might be interested in
haru rides his bike from his home for 30 minutes at a fast pace. He stops to rest for 20 minutes, and then continues riding in t
Bezzdna [24]

Using the given information and what we know about linear equations, we will find the sketch below.

<h3>How to sketch a graph?</h3>

Here we need to analyze each part separately.

In a coordinate axis where the y-axis represents distance and the x-axis represents time, we will have that:

First, we know that he rides for 30 minutes at a given speed, this will be represented with an increasing linear function.

Then he stops for 20 minutes, this is represented with a horizontal line.

Finally, he returns the motion, but slower than before, so the slope of this line will be smaller than the first one.

So for 0 to 30 we have an increasing linear equation, then for 30 to 50 we have a constant horizontal line, then for 50 to 80 we have another increasing linear equation

The sketch can be seen below.

If you want to learn more about linear equations, you can read:

brainly.com/question/4074386

6 0
2 years ago
Arianna gathered data about the distance of 20 cities from the equator and the average hours of sunlight per day in December for
stich3 [128]

<u>Answer-</u>

<em>A. strong negative correlation.</em>

<u>Solution-</u>

<u>Direction of a relationship</u>

  1. Positive- If one variable increases, the other tends to also increase. If one decreases, the other tends to also. It is represented by positive numbers(i.e 0 to 1).
  2. Negative- If one variable increases, the other tends to decrease, and vice-versa.  It is represented by negative numbers(i.e 0 to -1)

<u>Strength of a relationship</u>

  1. Perfect Relationship- When two variables are linearly related, the correlation coefficient is either 1 or -1. They are said to be perfectly linearly related, either positively or negatively.
  2. No relationship- When two variables have no relationship at all, their correlation is 0.

As in this case, correlation coefficient was found to be -0.91, which is negative and close to -1, so it is a strong negative correlation.


5 0
3 years ago
The temperature in Minneapolis changed from -7°F at 6 AM to 7°F at noon. how much did the temperature increase?
Paraphin [41]
That would be 7 - (-7)  = 7 + 7 = 14 degrees F
5 0
3 years ago
In a class, 7 students walk to school, two fifths ride and 32% are dropped off by their parents.
Svet_ta [14]
10 students ride the bus.
7 0
3 years ago
Please explain your answer. Thank you!!
Ad libitum [116K]

Answer:

(A) 180

Step-by-step explanation:

We have to treat those player selections as independent events, since one doesn't influence the other (the fact you chose Joe as a guard, shouldn't have an influence on who'll pick as center, unless there's bad blood between some players... but that's a whole other story).

So, how many ways to pick 2 guards from a selection of 4?  The order doesn't seem to matter here, since they don't specify for example that Joe can only play on the left side).  So, it's a pure combination calculation:

C(4,2) = \frac{4!}{2! * (4 - 2)!} = \frac{24}{2 * 2} = 6

C(4,2) = 6.

How many ways to pick the 2 forwards from a group of 5?  Using the same calculation, we get:

C(5,2) = 10.

And of course, the coach has 3 ways to pick a center player from 3.

Then we multiply the possible ways to pick guards, forwards and center...

6 * 10 * 3 = 180 ways.

7 0
3 years ago
Other questions:
  • mary had 1 3/4 pound of blackberries. Mary's friend ate 3/4 of the blackberries. How many pounds of blackberries did Mary friend
    9·1 answer
  • Please help me i give brainliest !!!!!!!
    14·1 answer
  • CHOOSE THE NUMBER STATEMENT BELOW THAT IS CORRECT
    6·1 answer
  • FakdfjlaskdfjasdfjljDLKjdflkjsdlgansrhtoi
    8·1 answer
  • Jonathan parents told him that for every 5 hours of homework or reading he completed
    10·1 answer
  • Find the critical point of the function f(x) = x2 – 2x + 7.
    6·1 answer
  • Find 3rd and 5th form by using nth term formula tn=a+(n-1)d when tn=a+(n-1)d when a=2 and d=3.​
    9·1 answer
  • Emma played two games of miniature golf.Her total score for the two games was 0. Emma’s score in the first game was +3. What was
    8·1 answer
  • Solve the following system by graphing and identify the point of intersection.
    15·1 answer
  • In which two of these numbers does the digit
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!