Given
f(x) = 3x + 10 and g(x) = x - 2, find f (g(5))
-10
23
None of these.
2 answers:
Answer: None of these
Explanation:
f(g(5)) first let’s find g(5)
We know:
g(x) = x - 2
g(5) = 5 - 2
g(5) = 3
Thus, f(g(5)) = f(3) because g(5) = 3
=> f(3) = 3(3) + 10
=> f(3) = 9 + 10
=> f(3) = 19
Therefore, f(g(5)) = 19
Solution :-
Provided :-
• f(x) = 3x + 10
• g(x) = x - 2
We have to find out
• f(g(5))
Replace g(x) = x - 2 , here x = 5
= f( (5) - 2)
= f(3)
Replace f(x) = 3x + 10 , here x = g(x) = 3
= 3(3) + 10
= 9 + 10
= 19
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