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suter [353]
3 years ago
9

Show your work - 1=3r+2r

Mathematics
2 answers:
hram777 [196]3 years ago
6 0

Answer:

r=-1/5

Step-by-step explanation:

erastova [34]3 years ago
4 0

Answer:

-1/5

Step-by-step explanation:

-1=3r+2r

-1=5r

-1/5=5r/5

-1/5=r

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Which similarity statement is true for the triangles shown?<br><br> - ABC = DEF<br> - ABC = FED
kodGreya [7K]

Answer:

I’m pretty sure it’s Triangle ABC is congruent to Triangle DEF.

Step-by-step explanation:

If you rotate Triangle DEF to where the 90 degree angle is on the bottom right, you can the compare the two triangles. You can divide 300/25, 240/20, and 180/15. They all result in 12 meaning they are congruent and similar in that way. (I’m only 90% this is right btw)

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3 years ago
Do you know this answer? Please help
ra1l [238]

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5 0
2 years ago
Read 2 more answers
X^2+4x-1/(x+2)^2=0 solve for x
dalvyx [7]
<span>x^2+4x-1/(x+2)^2=0
x^2 + 4x - 1 = 0
</span>
\frac{x^2+10x-7}{x^2+10x+25} =0\\x^2+10x-7=0\\x= \frac{-b\pm\sqrt{b^2-4ac}}{2a};
where a = 1, b = 4 and c = -1

x=\frac{-4\pm\sqrt{4^2-(4\times1\times(-1)}}{2\times1}\\=\frac{-4\pm\sqrt{16+4}}{2}=\frac{-4\pm\sqrt{20}}{2}\\=\frac{-4\pm\sqrt{4\times5}}{2}=\frac{-4\pm2\sqrt{5}}{2}=-2\pm\sqrt{5}\\=-2+\sqrt{5}&#10; \ or \ -2-\sqrt{5}\\x=0.24 \ or \ x = -4.24
5 0
3 years ago
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