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larisa86 [58]
3 years ago
9

If f(x)=x+8 and g(x)=-4x-3 find (f+g)(x)

Mathematics
1 answer:
nydimaria [60]3 years ago
7 0

Answer:

for this case we have the following functions:

f (x) = x + 8

g (x) = -4x - 3

Subtracting the functions we have:

(f - g) (x) = f (x) - g (x)

(f - g) (x) = (x + 8) - (-4x - 3)

Rewriting:

(f - g) (x) = x + 8 + 4x + 3

(f - g) (x) = 5x + 11

Answer:

D. (f - g) (x) = 5x + 11

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Sviatoslav solved the quadratic equation x^2-x-1=0 by completing the square. In the process, he came up with the equivalent equa
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Answer:

x=\frac{1+\sqrt5}{2} and  x=\frac{1-\sqrt5}{2}

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Step-by-step explanation:

We are given that a quadratic equation

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Therefore,x=\frac{1+\sqrt5}{2} and  x=\frac{1-\sqrt5}{2}

and b=\frac{5}{4}

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