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aniked [119]
3 years ago
9

Can someone explain how to do this, please?​

Mathematics
1 answer:
BartSMP [9]3 years ago
6 0

Answer:

\sqrt{ {28x}^{2} - 6x }

Step-by-step explanation:

You would substitute "2x" for every "x" in the function in the same way you would substitute any other number.

So if f(x)=Sqrt[7x²-3x], then: f(2x)=Sqrt[7(2x)²-3(2x)]

=Sqrt[7(4x²)-3(2x)]

=Sqrt[28x²-6x]

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radius = \sqrt{34}

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Use the distance formula to calculate r

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r = \sqrt{(5-0)^2+(- 3-0)^2}

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  = \sqrt{34}

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