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zmey [24]
3 years ago
8

I really need help pls pls pls help

Mathematics
1 answer:
rewona [7]3 years ago
3 0

Answer:

the first one

Step-by-step explanation:

because 1 inch=22feet, so 242 feet=11 inch

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Find the point (x1,x2) that lies on the line x1 +5x2 =7 and on the line x1 - 2x2 = -2.
Savatey [412]

Given :

Two equation x_1 +5x_2 =7 and x_1 - 2x_2 = -2 .

To Find :

The point of intersection of these lines .

Solution :

We will use elimination method :

From equation 1 :

x_1=7-5x_2

Putting value of x_1 in equation 2 we get :

(7-5x_2)-2x_2=-2\\\\7-7x_2=-2\\\\x_2=\dfrac{9}{7}

Putting value of x_2 in equation 1 we get :

x_1+5\times \dfrac{9}{7}=7\\\\x_1=\dfrac{4}{7}

Therefore , point of interaction is (\dfrac{4}{7},\dfrac{9}{7}) .

Hence , this is the required solution .

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2 years ago
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ozzi

Answer:

1) \frac{6+\sqrt{6} }{2}       2) -3 + \sqrt{12}

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8 0
3 years ago
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Y_Kistochka [10]
Y intercept is where the line meets the Y axis
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3 years ago
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2 years ago
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