Identify the variable expression that is not a polynomial.

G) Does your residual plot show that the linear model from the regression calculator is a good model? Explain your reasoning.

katrin [286]

The residual plot does not show a linear model and the estimated GPA of a student who studies for 15 hours a week is 3.17

<h3>How to interpret the residual plot?</h3>

The figure (1) represents the residual plot.

In the residual plot of a linear model, the line of the plot is represented by a horizontal line

From the figure, the line of the plot is not an horizontal line.

Hence, the residual plot does not show a linear model

<h3>The estimated GPA</h3>

The number of hours is given as:

x = 15 hours

The regression line is given as:

y = 0.134x + 1.16

Substitute 15 for x

y = 0.134 * 15 + 1.16

Evaluate

y =3.17

Hence, the estimated GPA of a student who studies for 15 hours a week is 3.17

Read more about regression equations at:

brainly.com/question/25226042

#SPJ1

4 0

3 years ago

Classify the random variables below according to whether they are discrete or continuous.a. The number of people in a restaurant

Murrr4er [49]

Answer:

a) Discrete

b) Continuous

c) Continuous

d) Discrete

e)Discrete

Step-by-step explanation:

Continuous:

Real numbers, can be integer, decimal, etc.

Discrete:

Only integer(countable values). So can be 0,1,2...

a. The number of people in a restaurant that has a capacity of 100.

You cannot have half a person, for example.

The possible number of people in the restaurant are 0, 1, 2,..., 100. So this variable is discrete.

b. The height of a randomly selected giraffe.

The giraffe can have half a meter, for example. That is, the height can be a decimal number. So this variable is continuous

c. The square footage of a house.

You can have half a square, for example. So this variable is continuous.

d. The number of light bulbs that burn out in the next week in a room with 10 bulbs.

Possible values: 0 bulbs, 1 bulb, ..., 10 bulbs

Only countable values.

So discrete

e. The number of points scored during a basketball game.

0 points, 1 point, 2 points, 10 points, ...

There are no half points in basketball.

So discrete

8 0

3 years ago

A triangle has an area of 60 square units. Its height is 12 units. What is the length of its base?

Hoochie [10]

Area=1/2 times base times height
area=60
height=12
60=1/2 times base times 12
divide both sides by 12
5=1/2 times base
multipy both side sby 2
10=base
10 units=base

6 0

4 years ago

In triangle ABC below, line segment AB is 9 meters long and like segment BC is 7 meters long. use the Pythagorean theorem to fin

Cloud [144]

I have the answer attached.

3 0

4 years ago

Read 2 more answers

Find an equation of the set of all points equidistant from the points A(−3, 6, 3) and B(4, 1, −1). Describe the set.

valentinak56 [21]

Answer:

See below

Step-by-step explanation:

I will describe this set in R³. Let P=(x,y,z) be a point equidistant to A and B, that is, the distance from P to A is equal to the distance from P to B.

First, using the usual distance formula, the distance from P to A is equal to $d(P,A)=\sqrt{(x-(-3))^2+(y-6)^2+(z-3)^2}=\sqrt{(x+3)^2+(y-6)^2+(z-3)^2}$