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19-02-2019
Mathematics

contestada

6. let f(x)=x+5 and g(x)=x^2. Find (g*f)(4)

a.9
b.81
c.21
d.1

Respuesta :

MrsStrong MrsStrong

25-02-2019

Answer:

B

Step-by-step explanation:

(g*f)(4) means to find g(f(4)). This is a composite which asks one equation to be substituted into another equation.

[tex]g(f(4)) = (4+5)^2\\g(f(4)) = 9^2\\g(f(4)) = 81[/tex]

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