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never [62]
4 years ago
7

Solve for x x+3over2+ 2x over7 equal7

Mathematics
1 answer:
coldgirl [10]4 years ago
5 0
(1+ 3/2 + 2/7) x = 7

X= 7/( 1+ 21/14 + 4/14)

X = 7 / 39/14

X= 98/39
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The domain is all real numbers except -6 and 0. Hence, domain D: {x ∈ ℝ| x ≠ –6, 0}

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Given the following functions:

f(x)=\frac{9}{x^2-9}\\g(x)=x+3

First we need to get the composite function f(g(x))

f(g(x)) = f(x+3)\\f(x+3)=\frac{9}{(x+3)^2-9} \\f(x+3)=\frac{9}{x^2+6x+9-9} \\f(x+3)=\frac{9}{x^2+6x} \\

Get the domain

The domain the values of x for which the function exists. The function cannot exists at when x = -6 and x = 0

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The range is the value of y for which the function exists. The function cannot exists at when x = -6 and x = 0

  • Hence the range is all real numbers except -3 and 3. Hence, range R: (–∞, –3) ∪ (3, ∞)

Learn more here: brainly.com/question/20838649

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