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Lina20 [59]
3 years ago
9

Imples 1 and 2) 2. $28 lunch; 15% tip chanted

Mathematics
1 answer:
Nana76 [90]3 years ago
5 0

Answer:

try 32.2

if wrong sorry

Step-by-step explanation:

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Answer:

x_1=\frac{1+\sqrt{33} }{2},y_1=\frac{5+\sqrt{33} }{2}\\ \\ x_2=\frac{1-\sqrt{33} }{2},y_2=\frac{5-\sqrt{33} }{2}

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You must find the solution of the system using the substitution method.

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y=-x^2+2x+10\\\\ y=x+2

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x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}\\ \\ x=\frac{-(-1)+/-\sqrt{(-1)^2-4(1)(-8)} }{2(1)}\\ \\ x=\frac{1+/-\sqrt{1+32} }{2}

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Use y = x  + 2 to find the value of y:

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