All categories

2 years ago

What is the equation for the line of curve of best fit for the following data?

Mathematics

1 answer:

Vlad [161]2 years ago

6 0

Correct answer:
Option B. y = 50.5x - 240

If we plot these points on a graph, we will observe that these points mostly lie in a straight line. Therefore, a straight line will be the best fit for the given ordered pairs. The equation of the best fit can be found using any tool like Statistica, Stata or Excel. I have used Microsoft Excel to plot the lines and find the equation of best fit. The graph and equation are shown below in the image attached with:

You might be interested in

Combine the terms in the given polynomial then evaluate for x=3, and y=-1

Novay_Z [31]

Answer: $xy^2+3x^2y;\text{ -24}$

Explanation:

The given expression is:

$xy+3xy^2-2xy+3x^2y-2xy^2+xy$

Combine like terms

$xy+xy-2xy+3xy^2-2xy^2+3x^2y$

Simplify the resulting expression

$\begin{gathered} 2xy-2xy+3xy^2-2xy^2+3x^2y \\ \\ xy^2+3x^2y \end{gathered}$

Substitute x = 3 and y = -1 into the simplified expression

$\begin{gathered} xy^2+3x^2y \\ \\ 3(-1)^2+3(3)^2(-1) \\ \\ 3(1)+(-27) \\ \\ 3-27 \\ \\ =-24 \end{gathered}$

6 0

10 months ago

a pizza was cut into fifths. each of these fifths is cut into thirds. what fraction of the pizza is each of the final pieces

AnnZ [28]

Answer: 1/15

Pizza cut into fifth, therefore 1 piece = 1/5

1 piece cut into thirds = 1/3 x 1/5 = 1/15

3 0

3 years ago

There are 4,000 books in the town's library. Of these 2,600 are fiction. Write a percent equation that you can use to find the p

defon

Answer:

x = (2600/4000) × 100%

x = 0.65 × 100%

x = 65%

Step-by-step explanation:

The percentage equation that can be used to find the percent of books that are fiction can only be found where the number of fiction books is known and the total number of books available is known as well.

Given;

Number of fiction books = 2,600

Number of books = 4,000

let the percent of books that are fiction be x

x = (2600/4000) × 100%

x = 0.65 × 100%

x = 65%

5 0

3 years ago

(4x – 8)(3x + 9) = 0

Gwar [14]

Answer:

$\mathrm{The\:solutions\:to\:the\:quadratic\:equation\:are:}$

$x=2,\:x=-3$

Step-by-step explanation:

Considering the equation

$\left(4x\:-\:8\right)\left(3x\:+\:9\right)\:=\:0$

solving the equation

$\left(4x\:-\:8\right)\left(3x\:+\:9\right)\:=\:0$

$\mathrm{Using\:the\:Zero\:Factor\:Principle:\quad \:If}\:ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0\:\left(\mathrm{or\:both}\:a=0\:\mathrm{and}\:b=0\right)$