3 years ago

To solve a system of equations, you can replace a ____________with an equal value or expression.

Mathematics

1 answer:

Ludmilka [50]3 years ago

4 0

Answer:

Variable

Step-by-step explanation:

If you can substitute a unknown variable with another expression that is equal, you can then solve for another variable, and with that equal expression, solve for the first variable.

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Aleksandr [31]

Answer:

m=-4/3

Step-by-step explanation:

Rise/run

it goes up -4 units and over 3

-4/3

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3 years ago

According to (1.17), lei = 0 when regression model (1.1) is fitted to a set of n cases by the method of least squares. is it als

pychu [463]

solution:

\sum ei =0

that is

\sum (yi-yiˆ)=0

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so,

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hence proved

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Eddi Din [679]

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3 years ago

Write the slope-intercept form of the equation of the line through the given points:

vredina [299]

Answer:

equation of line

x-2y=8

Step-by-step explanation:

equation of line in slope intercept form

(y-y1)={(y2-y1)/(x2-x1)}(x-x1)

or,(y+3)={(-5+3)/(-2-2)}(x-2)

or,(y+3)=(1/2)(x-2)

or,2y+6=x-2

or,6+2 =x-2y

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2 years ago