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liubo4ka [24]
3 years ago
9

Simplify: (5x2 − 9x + 3) + (4x2 + 4x − 12)

Mathematics
2 answers:
dem82 [27]3 years ago
6 0
5x2 - 9x + 3 + 4x2 + 4x - 12
= 9x2 - 5x - 9

hope this helps (all I did was combine like terms)
Irina-Kira [14]3 years ago
3 0
(5x² - 9x + 3) + (4x² + 4x - 12) = 5x² - 9x + 3 + 4x² + 4x - 12 = 9x² -5x - 9
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Question 9
kiruha [24]

The slope of the linear equation is 20 and the y-intercept is 150

<h3>What is a Slope?</h3>

Slope measures how steep a straight line is. It is described as rise over run.

The slope of the linear equation can be found as follows;

He opens the account with $150 and he plans to save $20 each week. Therefore,

let

x = number of weeks

Therefore,

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y = amount in his account after x number of weeks.

Using the slope intercept equation,

<h3>Slope intercept equation:</h3>
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where

m = slope

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Therefore, the slope of the linear equation is 20 and the y-intercept is 150

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2 years ago
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