How many solutions does each system have?
1 answer:
Answer:
System 1 has an infinite number of solutions and System 11 has no solution.
Step-by-step explanation:
System 1:
x = y - 3
x - y = -3
2x - 2y = -6
Divide above by 2:
x - y = -3
So the 2 equations are identical
and they have an infinite number of solutions.
System 11:
5x + 2y = -7
15x + 6y = 21
Divide the above by 3:
5x + 2y = 7
Comparing this to the first equation the left sides are the same but right sides are different ( -7 and 7)/
There is no solution to this system.
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square has 4 equal sides
so A = 144 = 12^2
A = L x W
= W. W
= W^2
12^2 = W^2
so W = 12
answer: one side of the square = 12
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-12x+7x+3x^2+1
Combine like terms:
3x^2+(-12x+-7x)+1
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Answer:
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