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rusak2 [61]
3 years ago
14

F(x)=x^2-2x+3; f(x)=-2x+28

Mathematics
1 answer:
adell [148]3 years ago
8 0

Answer:

(-5, 38) and

(5,18)

Step-by-step explanation:

x^2-2x+3=-2x+28\\ x^2-2x+3+2x=28\\ x^2 = 28-3=25\\ x^2-25=0\\ x^2-5^2 =0\\ (x-5)(x+5)=0\\ x = 5 \ or \ x=-5

so the solutions are

(-5, 38) and

(5,18)

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Answer:

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Step-by-step explanation:

<u>Circle and Square </u>

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Replacing h

\displaystyle r^2=(L-r)^2+\left(\frac{L}{2}\right)^2

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\displaystyle r^2=L^2-2Lr+r^2+\frac{L^2}{4}

Simplifying

\displaystyle 2Lr=L^2+\frac{L^2}{4}

Multiplying by 4

\displaystyle 8r=4L+L

Joining terms

\displaystyle 8r=5L

Solving for the ratio L/R as required

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