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anonymous
 one year ago
given the following functions f(x) and g(x) solve f[g(7)]
f(x) = 4x + 21
g(x) = 2x + 2
HELP IM SO CONFUSED I JUST NEED SOMEONE TO LAY IT ALL OUT
anonymous
 one year ago
given the following functions f(x) and g(x) solve f[g(7)] f(x) = 4x + 21 g(x) = 2x + 2 HELP IM SO CONFUSED I JUST NEED SOMEONE TO LAY IT ALL OUT

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freckles
 one year ago
Best ResponseYou've already chosen the best response.0Do you know how to find g(7)?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0No I don't know how to do any of it @freckles I need someone to kinda lay the whole thing out to me

freckles
 one year ago
Best ResponseYou've already chosen the best response.0g(x)=2x+2 g(7) means we should replace x's with 7's g(7)=2(7)+2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Is it 85? Because g(7)=16. Plug in 16 for x in f which equals 85.

freckles
 one year ago
Best ResponseYou've already chosen the best response.0do you know how to simplify 2(7)+2?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You should start with what is in the parenthesis which is g(7). For that you simply plug in 7 for x.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The answer is 85. Because after you get g(7)=16. you plug in 16 for x in f(g)
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