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Luden [163]
3 years ago
6

X-9= 1/4x + (1/4x + 12) + (1/4x - 3) what’s that answer?

Mathematics
1 answer:
konstantin123 [22]3 years ago
7 0

Answer:

x = 72

Step-by-step explanation:

Make the problem simpler by eliminating the fractional coefficients:

x-9= 1/4x + (1/4x + 12) + (1/4x - 3), when multiplied by 4, becomes:

4x - 36 = x + x + 48 + x - 12

Summing up all the x terms, we get:

4x - 2x - x = 48 - 12 + 36

Then x = 72

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FinnZ [79.3K]

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3 years ago
What is the perimeter of the triangle shown on the coordinate plane,to the nearest tenth of a unit ?
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Answer:

25.6 units

Step-by-step explanation:

From the figure we can infer that our triangle has vertices A = (-5, 4), B = (1, 4), and C = (3, -4).

First thing we are doing is find the lengths of AB, BC, and AC using the distance formula:

d=\sqrt{(x_2-x_1)^{2} +(y_2-y_1)^{2}}

where

(x_1,y_1) are the coordinates of the first point

(x_2,y_2) are the coordinates of the second point

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d=\sqrt{(1+5)^{2}+(0)^2}

d=\sqrt{(6)^{2}}

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d=\sqrt{(2)^{2} +(-8)^{2}}

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- For AC:

d=\sqrt{[3-(-5)]^{2} +(-4-4)^{2}}

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Next, now that we have our lengths, we can add them to find the perimeter of our triangle:

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3 years ago
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