wyleekylee12
What is the value of f[g(5)] for the functions f(x) = 2x + 1 and g(x) = 2x  5 ? Please I don't get it at all.



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ghass1978
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whats g(5)?

msayer3
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so first solve function g(x) with x = 5 then whatever you get from that, substitute into f(x) and solve that

wyleekylee12
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I have no idea, im taking a test and thats the problem they gave me

msayer3
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uh...

ghass1978
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g(5)=2(5)5=105=5

wyleekylee12
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so five is the answer?

ghass1978
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no 5 is g(5):)
now f(g(5))=f(5)=2(5)+1=11 which is the answer

wyleekylee12
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OHHH i see how you did it, thanks!

ghass1978
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good

amistre64
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"im taking a test" is always rife with bad vibes ...