Math i need help x-2y=1

Mathematics

1 answer:

arlik [135]3 years ago

4 0

Answer:

Yo im taking the same thing tell me what answer you get because i eed it to.

Step-by-step explanation:

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Inessa [10]

Answer: $3 per pound

Step-by-step explanation:

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Find the distance from P to l.

ki77a [65]

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$Point-line\ distance\\l:Ax+By+C=0;\ (x_0;\ y_0)\\\\d=\dfrac{|Ax_0+By_0+C|}{\sqrt{A^2+B^2}}\\\\x+y+2=0\to A=1;\ B=1;\ C=2\\(1;\ 2)\to x_0=1;\ y_0=2\\subtitute\\\\d=\dfrac{|1\cdot1+1\cdot2+2|}{\sqrt{1^2+1^2}}=\dfrac{|1+2+2|}{\sqrt2}=\dfrac{|5|}{\sqrt2}=\dfrac{5}{\sqrt2}=\dfrac{5\cdot\sqrt2}{\sqrt2\cdot\sqrt2}\\\\=\boxed{\dfrac{5\sqrt2}{2}}$

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Julie is 3 years older than her sister. Julie's age is 11 years old.<br> How old is her sister?

Ne4ueva [31]

Answer:

14 :)

Step-by-step explanation:

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3 years ago

Help please due today and it’s a benchmark

Leona [35]

Answer:

Step-by-step explanation:

Ok, so the third and fourth don't seem right. I am going to assume it's either 1 or 2. Sorry if you get it wrong because of me.

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3 years ago

The lenght of a side of a sqeare whose perimeter is r units

suter [353]

Answer:

r/4 units

Step-by-step explanation:

each side of a square is of the same length, perimeter is the sum of the 4 length, length of a side of square = r/4 units

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3 years ago