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Katen [24]
2 years ago
10

Which statement is true about the equations –3x + 4y = 12 and x – y = 1?

Mathematics
1 answer:
Firlakuza [10]2 years ago
6 0
-3x + 4y = 12
x - y = 1....x = y + 1

-3(y + 1) + 4y = 12
-3y - 3 + 4y = 12
-3y + 4y = 12 + 3
y = 15

x - y = 1
x - 15 = 1
x = 1 + 15
x = 16

one solution (16,15)

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serious [3.7K]

Answer:

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Radius: 2.5

Equation: (x-4)^2+(y-8)^2=6.25

Step-by-step explanation:

It was given that; the endpoints of the longest chord on a circle are (4, 5.5) and (4, 10.5).

Note that the longest chord is the diameter;

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Use the midpoint formula;

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The distance formula is;

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