3 years ago

What is the answer? if x=3? 3(x+7-2) + 45?

Mathematics

1 answer:

gulaghasi [49]3 years ago

6 0

Answer:

-21

Step-by-step explanation:

Replace x by given value

3(x+7-2) + 45

➡

3×(3+7-2) + 45 do the inside the parenthesis first

➡

3×8 - 45 = -21

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3 years ago

Find the equation for the line of best fit using the two points that are close to the line of best fit (2,70) and (4.5, 90)

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Two points that are close to the line of best fit are (2,70) and (4.5, 90).

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Th equation of best fit line using the given two points.

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We know that, if a line passes through the two points, then the equation of line is

$y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)$

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