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lisabon 2012 [21]
3 years ago
5

Tion 3 Multiple Choice Worth 5 (05.01) 25 1253 X-10 x=3

Mathematics
1 answer:
aleksley [76]3 years ago
7 0

Answer:

7?

Step-by-step explanation:

if your asking x-10=?

then just put in x which is 3 because x=3

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Find the area and perimeter.
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Step-by-step explanation:

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charle [14.2K]

ANSWER

See below

EXPLANATION

Given

f(x) =  \frac{ {x}- 9 }{x + 5}

and

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(f \circ \: g)(x)=  \frac{ (\frac{ - 5x - 9}{x - 1})- 9 }{(\frac{ - 5x - 9}{x - 1} )+ 5}

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Expand:

(f \circ \: g)(x)=  \frac{ \frac{ - 5x - 9 - 9x  + 9}{x - 1}}{\frac{ - 5x - 9 + 5x - 5}{x - 1} }

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(f \circ \: g)(x)=  \frac{ \frac{ - 14x }{x - 1}}{\frac{ -14}{x - 1} }

Since the denominators are the same, they will cancel out,

(f \circ \: g)(x)= \frac{ - 14x}{ - 14}  = x

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Step-by-step explanation:

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