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lbvjy [14]
3 years ago
15

Given the line of best fit for a data set of data points with the equation y=5x-2.5,what is the residual for the point (4,13)

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
7 0

Answer:

-4.5

Step-by-step explanation:

The predicted value from the model is calculated by substituting x with 4 in the regression equation;

y = 5(4) - 2.5

y = 17.5

The actual value when x is 4 is given as 13. The residual is simply the difference between the actual and the predicted value;

residual = actual value - predicted value

residual = 13 - 17.5

residual = -4.5

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Step-by-step explanation:

A is 540

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D is 360

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2 years ago
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atroni [7]

Answer:

Concept: Area

  1. area = \pi {r}^{2}
  2. We are given area hence 78.5 square meters
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4 0
2 years ago
Read 2 more answers
Which expression can be used to find the difference of the polynomials?
nadya68 [22]

Answer:

D is correct.  ( 4m - 5 ) + ( -6m + 7 - 2n )

Step-by-step explanation:

We are given a difference of two polynomial

(4m-5) - (6m-7+2n)

We need to choose correct choice which is equivalent to given expression.

Here we have minus sign between two parentheses.

First we distribute minus sign over (6m-7+2n) using distributive property.

Minus sign will distribute with each term inside (6m-7+2n).

When it will distribute it changes the sign of each term inside the parentheses.

6m\rightarrow -6m

-7\rightarrow +7

+2n\rightarrow -2n

After distribution we get

( 4m - 5 ) + ( -6m + 7 - 2n )

Thus, D is correct option which is similar to given expression.

6 0
3 years ago
Read 2 more answers
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