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kow [346]
3 years ago
10

(8.4x + 2.9) + (-3.7x + 5).

Mathematics
1 answer:
konstantin123 [22]3 years ago
4 0

Answer:

10

Step-by-step explanation:

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Kipish [7]

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Change the given equation to slope-intercept to get y=\frac{7}{4}x-\frac{1}{4}. When you multiply the slopes of perpendicular lines, you get -1. -1 divided by \frac{7}{4} is -\frac{4}{7}. The slope of the new line is then -\frac{4}{7}. The perpendicular line passes through (5, 5) so you can have the equation5=-\frac{4}{7} (5)+b. Simplifying gets b = \frac{55}{7} . So now the final equation for the perpendicular line is y=-\frac{4}{7} x+\frac{55}{7}

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