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2 years ago

Which line of best fit accurately represents the given scatter plot?

Mathematics

1 answer:

Fofino [41]2 years ago

8 0

The third one down
Because the best line of fit is a line that goes between the plotted points and it HAS to be a straight line and most of the points close to the line

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Find the X-Intercepts of <br> y=-x^2-2x+1

bekas [8.4K]

Answer:

(1,0)

Step-by-step explanation:

we can't factor this so we'll use the quadratic formula

$\frac{-b+\sqrt{b^2-4ac} }{2a}\\\frac{-b-\sqrt{b^2-4ac} }{2a}$

(use both of them because usually there are two zeroes)

We have

$\frac{2+\sqrt{4-4}}{2}=\frac{2}{2}=1$

Therefore the x intercept is just (1,0)

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3 years ago

Which expression represents the perimeter of the rectangle above?

Arisa [49]

Answer:

12x-8

Step-by-step explanation:

Added both equations and used PEMDAS to combine all equations

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3 years ago

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Tpy6a [65]

Answer:

8 : 28

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16:56

Step-by-step explanation:

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3 years ago

I need help with 8,9 and 10

rodikova [14]

Answer:

Answer 8: D

Answer 9: A

Step-by-step explanation:

8D: 5(12)/4-1=14

9A: Plug in -5(1)+2 = -3, so the point is (1,-3)

Question 10 is not visible

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3 years ago

What is the slope for -4x + 2y=-10

qaws [65]

Answer:

m=2

Step-by-step explanation:

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3 years ago