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NeX [460]
3 years ago
11

If f(x) = 3 -3 and g(x) = 3x2 + x – 6, find (f + g)(x).

Mathematics
1 answer:
DanielleElmas [232]3 years ago
3 0

Answer:

D

Step-by-step explanation:

note that (f + g)(x) = f(x) + g(x) , thus

f(x) + g(x)

= \frac{x}{2} - 3 + 3x² + x - 6 ← collect like terms

= 3x² + \frac{3}{2} x - 9 → D

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3) You can transform the equations given in your picture to the form (x -xc)^2 + (y -yc)^2 = r2 by completing squares.

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rearrange: 4x^2 + 16x + 4y^2 - 8y = 308

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Therefore, you conclude that these two circumferences have the same center and differet r, so they are concentric.
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