help_people
  • help_people
Consider the functions f(x) = 3x − 2 and g(x) = x2 − 1. What is the value of f[g(5)]? 312 70 168 −1
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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welshfella
  • welshfella
first find g(5) by replacing the x in x^2 - 1 and working it out
welshfella
  • welshfella
can you do that?
help_people
  • help_people
g(5)= 5^2-1 ?

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help_people
  • help_people
is that what you mean?
welshfella
  • welshfella
yes
welshfella
  • welshfella
g(5) means the value of g when x = 5
help_people
  • help_people
g(5) =24
welshfella
  • welshfella
g(5) = 25 - 1 = 24 f(g(5)) = f(24) ( replacing g(5) by 24) can you work this out?
welshfella
  • welshfella
again just relpace the x in f(x) (3x - 2) by 24 and simplify
madhu.mukherjee.946
  • madhu.mukherjee.946
hey its value is 70
help_people
  • help_people
f(x)=(3(24) -2) @welshfella
help_people
  • help_people
and are you sure @madhu.mukherjee.946
madhu.mukherjee.946
  • madhu.mukherjee.946
yeah
help_people
  • help_people
could you at least show your work
madhu.mukherjee.946
  • madhu.mukherjee.946
ok
madhu.mukherjee.946
  • madhu.mukherjee.946
see g(x)=x^2-1 so g(5)=25-1=24 now,f[g(5)]=3x-2=3*24-2 =72-2=70
welshfella
  • welshfella
yes thats correct
welshfella
  • welshfella
you multiply the 3 by 24 first then subtract the 2
help_people
  • help_people
ok thank you guys xoxo so the answer is 70 @madhu.mukherjee.946 @welshfella
welshfella
  • welshfella
yw

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