sabriaspry1 sabriaspry1

23-02-2021
Mathematics

contestada

If f(x) = 3(x+ 5) +4/x, what is f(a+2)?

A. 3(f (a) + 5) +4/f(a)+2

B. 3(a + 7) + 4/a+2

C. 3(a + 2) + 4/a + 2

Respuesta :

stupidboythink stupidboythink

23-02-2021

Answer:

B. 3(a + 7) + 3/(a + 2)

Step-by-step explanation:

Just substitute (a+2) in for every (x) in the equation:

f(a + 2) = 3 ((a + 2) + 5) + 4/(a+2)

= 3 (a + 7) + 4/(a+2)

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