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3 years ago

The residual plot for a data set is shown.

Mathematics

2 answers:

topjm [15]3 years ago

8 0

Answer:

D.The regression line is not a good model because there is a pattern in the residual plot.

Step-by-step explanation:

Cerrena [4.2K]3 years ago

3 0

Answer:

The regression line is not a good model because there is a pattern in the residual plot.

Step-by-step explanation:

Given is a residual plot for a data set

The residual plot shows scatter plot of x and y

The plotting of points show that there is not likely to be a linear trend of relation between the two variables. It is more likely to be parabolic or exponential.

Hence the regression line cannot be a good model as they do not approach 0.

Also there is not a pattern of linear trend.

D) The regression line is not a good model because there is a pattern in the residual plot.

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At Micaela's Printing Company LLC there are two kinds of penting presses: Model A which can print 60 books per day and Model B w

devlian [24]

A+B=15 —>A+15=B(plug this into the other equation)
60a+30b=600
60a+30(a+15)=600
60a+30a+150=600
90a+150=600
90a=450
A=5 (plug back in to first equation)
A+B=15
5+B=15
B=10

They have 5 of the Model A and 10 of model B.

8 0

2 years ago

I haven't Learned this yet

Cloud [144]

The first 5 terms in an arithmetic sequence is 4,2,0,-2,-4

Explanation:

The general form of an arithmetic sequence is

$a(n)=a+(n-1)d$

where a denotes the first term of the sequence, d denotes the common difference.

Here a = 4 and d = -2

To determine the consecutive terms of the sequence, let us substitute the values for n.

To find the second term, substitute n = 2 in the formula $a(n)=a+(n-1)d$

$a(2)=4+(2-1)(-2)$

Simplifying,

$a(2)=4-2=2$

Similarly,

For n = 3,

$a(3)=4+(2)(-2)=0$

For n = 4,

$a(4)=4+(4-1)(-2)\\a(4)=4+(3)(-2)\\a(4)=4-6\\a(4)=-2$

For n = 5,

$a(5)=4+(5-1)(-2)\\a(5)=4+(4)(-2)\\a(5)=4-8\\a(5)=-4$

Thus, the first 5 terms of the arithmetic sequence is 4,2,0,-2,-4

5 0

3 years ago

Mary is planning to provide online math and french language tutoring sessions. The math session will be 45 minutes long, and the

alisha [4.7K]

Answer:

3/4m + 1/2f ≤ 30
f ≤ 30

Step-by-step explanation:

Math session = 45 min = 3/4 hr
French session = 30 min = 1/2 hr
Number of math sessions = m, total math hours = 3/4m
Number of French sessions = f, total French hours = 1/2f

Total hours constraint:

3/4m + 1/2f ≤ 30

Number of session constraint:

f ≤ 30

So the system is:

3/4m + 1/2f ≤ 30
f ≤ 30

4 0

3 years ago

Read 2 more answers

Is 4, 7, and 8 a Pythagorean triple?

LenaWriter [7]

Answer: Yes because if you add 4 squared and 7 squared you get 65. The if you use square root with 65 you will get 8.06225774. Simplify that and you get 8

Step-by-step explanation:

5 0

3 years ago

Find the slope of the line

Maslowich

Answer:

1/2

Step-by-step explanation:

(2,1)(4,2)

x1-y1/x2-y2

slope:m=1/2

7 0

3 years ago