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anonymous
 one year ago
If f(x) = 5x2 − 4 and g(x) = x − 2, what is (f o g)(3)?
(A) 129
(B)1
(C)39
(D)121
anonymous
 one year ago
If f(x) = 5x2 − 4 and g(x) = x − 2, what is (f o g)(3)? (A) 129 (B)1 (C)39 (D)121

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xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.0\[f(g(x))=5(g(x))^24=2(x2)^24=2[x^24x+4]4=2x^28x+4\] so fog(3)=2(3)^28(3)+4

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.0another way and perhaps easy is to plug 4 into g first g(3)=32=5 then plug 5 into f f(5)=?

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.0that's not what i got

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i got it right it was 121

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.0oh i did some mistake in calculations

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.0i got 121 too just error lol

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.0i used first one it should read 5x^220x+16

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.0i by mistake multiplied by 2 there
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