Given f(x) =4x-5,find f(3)

Mathematics

1 answer:

Crazy boy [7]2 years ago

8 0

Answer:

f(3) = 7

Step-by-step explanation:

Substitute x = 3 into f(x) , that is

f(3) = 4(3) - 5 = 12 - 5 = 7

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What are the solutions to the equation y2 – 1 = 48?

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${y}^{2} - 1 = 48 \\ {y}^{2} = 49 \\ y = \sqrt{49} \\ y = - 7 \: or \: 7$

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