3 years ago

Find the solution to the system of equations

Mathematics

1 answer:

Zinaida [17]3 years ago

6 0

Answer:

(-1, 1)

Step-by-step explanation:

Just look at where the two lines intersect and thats the soloution

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the length of a retangle is 4 inches greater than the width. the perimeter of the retangle is 24 inches. What are the dimensions

Marianna [84]

$24 = 2w + 2(w+4) \\24 = 2w + 2w + 8 \\24 = 4w + 8 \\24 - 8 = 4w \\16 = 4w \\\tfrac{16}{4} = w 4 = w$

The width is 4 inches, and length is 8 inches.

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3 years ago

Find the distance between the two points～<br>A ( 7 , 4 ) and B ( 3 , 2 )<br><br><br>thankyou!

vodka [1.7K]

Answer:

AB = $\sqrt{20}$

Step-by-step explanation:

calculate the distance using the distance formula

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

with (x₁, y₁ ) = B (3, 2 ) and (x₂, y₂ ) = A (7, 4 )

AB = $\sqrt{(7-3)^2+(4-2)^2}$

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= $\sqrt{16+4}$

= $\sqrt{20}$

≈ 4.47 ( to 2 dec. places )

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