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3 years ago

13

How do you calculate the residuals of a scatter plot?

1 answer:

Aloiza [94]3 years ago

6 0

Hello

A residual<span> is the difference between the observed y-value (from </span>scatter plot<span>) and the predicted y-value (from regression </span>equation<span> line). It is the vertical distance from the actual </span>plotted<span> point to the point on the regression line.
</span>
Have a nice day kid!

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Simplify the expression: 4a - 3(4 - a)

Lorico [155]

Answer:

<h2>7a-12</h2>

Step-by-step explanation:

$4a-3\left(4-a\right)\\\\\mathrm{Expand}\:-3\left(4-a\right):\quad -12+3a\\\\=4a-12+3a\\\\\mathrm{Simplify}\:4a-12+3a:\quad 7a-12\\\\\mathrm{Simplify}\:4a-12+3a:\quad 7a-12\\\\=7a-12$

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3 years ago

Rewrite 12%as a common fraction in a simple form<br>

Zigmanuir [339]

Answer:

3/25

Step-by-step explanation:

12% = $\frac{12}{100}=\frac{4*3}{4*25}=\frac{3}{25}$

Convert percentage to fraction and then simplify

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3 years ago

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F(x)=-3x^2+4x+4<br> G(x)=x(-7x-7)<br><br> Which expression is equal to f(x)+g(x)

schepotkina [342]

Answer:

A

Step-by-step explanation:

f(x)+g(x)=-3x^2+4x+4+x(-7x-7)= -3x^2+4x+4 -7^2-7x

= -10x^2-3x+4

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3 years ago

What number is equivalent to -21

Maksim231197 [3]

Well, $-21=x$ if $x=-21$ so that $-21=-21$ is true.

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Divide £70 in the ratio 4:3

kirill115 [55]

Answer:

Total=4 +3=7

For the 4

4÷7×70=£40

For the 3

3÷7×70=£30

So the division of £70 in ratio 4:3 is £40:£30

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2 years ago