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PilotLPTM [1.2K]
3 years ago
9

(-1,-3), (7,r), m=3/4​

Mathematics
1 answer:
KiRa [710]3 years ago
6 0

Answer:

r = 3

Step-by-step explanation:

Calculate the slope using the slope formula

m = (y₂ - y₁ )/ (x₂ - x₁ )

with (x₁, y₁ ) = (- 1, - 3) and (x₂, y₂ ) = (7, r)

m = \frac{r+3}{7+1} = \frac{r+3}{8}

Equating the 2 slopes, that is

\frac{r+3}{8} = \frac{3}{4} ( cross- multiply )

4(r + 3) = 24 ( divide both sides by 4 )

r + 3 = 6 ( subtract 3 from both sides )

r = 3

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8 0
4 years ago
For geometry:(<br><br> i’ll give a brainist!!!
kvasek [131]
<h3>Answer: Angle Q = 133 degrees</h3>

========================================================

Work Shown:

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