3 years ago

Y=-3x+4 y=2x-1 what’s the solution?

Mathematics

2 answers:

hoa [83]3 years ago

8 0

Your answer is (1,1)

icang [17]3 years ago

3 0

Answer:

use desmos graphing calc. our teacher reccomended it to us

Step-by-step explanation:

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The mean is 80.875

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3 years ago

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4 years ago

Read 2 more answers

To the nearest tenth, find the perimeter of ABC with vertices A(-1,4), B(-2,1) and C(2,1). show your work

liubo4ka [24]

we have to firstly apply the distance formula to find the length of sides of the triangle

distance formula = $\sqrt{(x_{2} -x_{1})^2 +(y_{2}- y_{1})^2}$

So length AB = $\sqrt{(-2-(-1))^2+(1-4)^2}= \sqrt{1 +9}=\sqrt{10}$

BC= $\sqrt{(2-(-2))^2+(1-1)^2}= \sqrt{16+0}=4$

AC = $\sqrt{(2-(-1))^2+ (1-4)^2}= \sqrt{9+9}=\sqrt{18}=3\sqrt{2}$

Now perimeter = AB+BC+AC = $\sqrt{10}+4+3\sqrt{2}$

Plug in calculator

perimeter= 11.4 units

7 0

3 years ago