veronikakaldess veronikakaldess

13-01-2021
Mathematics

contestada

f (x) = x2 + 4
What is the value of x when f (x) = 42
A. -2
В. 0
C 12
D. 20

Respuesta :

imranhafeez73 imranhafeez73

14-01-2021

Answer:

f(x)=X^2+4

f(x)=42

42=X^2+4

X^2+4=42

X^2=42-4

X^2=38

X=sqrt(38)=6.16

[tex] \sqrt{?} [/tex]

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