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earnstyle [38]
3 years ago
10

What does a residual value of –4.5 mean in reference to the line of best fit? The data point is 4.5 units above the line of best

fit. The data point is 4.5 units below the line of best fit. The line of best fit is not appropriate to the data. The line of best fit has a slope of –4.5.
Mathematics
2 answers:
Snezhnost [94]3 years ago
6 0

Answer: The data point is 4.5 units below the line of best fit

Step-by-step explanation:

Given residual value : -4.5

We know that a residual is the difference between the actual y-value and the expected y-value .

If the residual value 'r' is negative it implies that the data point is r units below the line of best fit.

Therefore, a residual value of –4.5 means in reference to the line of best fit that the  data point is 4.5 units below the line of best fit.

Vladimir [108]3 years ago
3 0

Answer;

The data point is 4.5 units below the line of best fit

Explanation;

-A residual value of –4.5 mean in reference to the line of best fit means that the data point is 4.5 units below the line of best fit.

-A line of best fit is a straight line that best represents the data on a scatter plot. It may pass through some of the points, none of the points, or all of the points.

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The sum of two numbers is 79. Three
Semmy [17]

Answer:

<u>The two numbers are 23 and 56</u>

Step-by-step explanation:

Let's say the two numbers are A and B.

We are told:

1)  A+B=79

2) 3A+5B=283

Let's take the first expression and solve for A:

A+B=79

A=79-B

Now use this value of A in the second expression:

3A+5B=283

3(79-B)+5B=283

237-3B+5B=283

2B = 46

B = 23

Since B=23, we know from 1) that

A+B=79

A+23=79

A = 56

<u>CHECK:</u>

Does A+B=79?  

        56+23 = 79?  <u>YES</u>

Does 3A+5B=283?

3(56)+5(23)=283

168  + 115 = 283?  <u>YES</u>

7 0
2 years ago
Read 2 more answers
Which figure is a scalene triangle?
sergeinik [125]
I think its the 2nd one
8 0
3 years ago
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1. The numbers ______ and _____ are respectively the additive and multiplicative identities of rational numbers
miss Akunina [59]

Answer:  0 and 1, in that order

The numbers <u>   0   </u> and <u>   1   </u> are respectively the additive and multiplicative identities of rational numbers.

===========================================================

Explanation:

The additive identity is 0 because adding 0 to any number leads to the original number. For instance, 7+0 = 7. In general we can say x+0 = x or we could also say 0+x = x.

The multiplicative identity is 1 because multiplying 1 with anything leads to that original number. Example: 1*5 = 5 or 9*1 = 1. The general template is x*1 = x which is the same as saying 1*x = x.

These ideas not only apply to rational numbers, but to real numbers as well.

8 0
2 years ago
Please help!!As soon as possible!!
pychu [463]

Answer: Their equations have different y-intercept but the same slope

Step-by-step explanation:

Since, the slope of the line passes through the points (2002,p) and (2011,q) is,

m_1 = \frac{q-p}{2011-2002} = \frac{q-p}{9}

Similarly, the slope of the line asses through the points (2,p) and (11,q) is,

m_2 = \frac{q-p}{11-2} = \frac{q-p}{9}

Since, m_1 = m_2

Hence, both line have the same slope.

Now, the equation of the line one having slope m_1 and passes through the point (2002,p) is,

y - p = \frac{q-p}{9}(x-2002)

Put x = 0 in the above equation,

We get, y = \frac{2000(p-q)}{9}+p

The y-intercept of the line one is (0, \frac{2000(p-q)}{9}+p)

Also, the equation of second line having slope m_2 and passes through the point (2,p)

y-p=\frac{q-p}{9}(x-2)

Put x = 0 in the above equation,

We get, y = \frac{2(p-q)}{9}+p

The y-intercept of the line one is (0, \frac{2(p-q)}{9}+p)

Thus, both line have the different y-intercepts.

⇒ Third option is correct.

6 0
3 years ago
Solve the equation <br>50=4(x-7)-6(3x-6)
rusak2 [61]

we are given

50=4(x-7)-6(3x-6)

Firstly , we can distribute

50=4x-28-18x+36

now, we can combine like terms

50=-14x+8

-14x=42

now, we can solve for x

and we get

x=-3...........Answer

3 0
3 years ago
Read 2 more answers
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