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goblinko [34]
3 years ago
14

3x-4y=8 18x-5y=10 What is the answer to this

Mathematics
1 answer:
trapecia [35]3 years ago
7 0

Answer:

x=0;y=-2

Step-by-step explanation:

multiply first equation by 6: 18x-24y=48

Subtract 2nd equation from 1st: -19y=38

y=-2

Sub into 1st equation: 3x-4(-2)=8

3x+8=8

3x=0

Therefore, x=0;y=-2

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The perimeter of XYZ is ___ units.
In-s [12.5K]

Look at the picture.

ZY = 5+3=8

For XY and ZX use the Pythagorean theorem.

XY^2=3^2+4^2\\\\XY^2=9+16\\\\XY^2=25\to XY=\sqrt{25}\\\\XY=5

ZX^2=5^2+4^2\\\\ZX^2=25+16\\\\ZX^2=41\to ZX=\sqrt{41}

The perimetero fo XYZ:

P_{\triangle XYZ}=8+5+\sqrt{41}=\boxed{13+\sqrt{41}}

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3 years ago
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Step-by-step explanation:

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2 years ago
a man owned 75 shares of stock worth $50 each the corporation declared a dividend of 8% payable in stock how many shares did he
Arturiano [62]
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3 0
3 years ago
Determine the discriminant for the quadratic equation -3 = x^2+4x+1 . Based on the discriminant value, how many real number solu
djverab [1.8K]

Answer:

1 real

Step-by-step explanation:

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The rules are:

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7 0
3 years ago
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