I think It should be "Variable".
Answer: Devaughn's age is 48 and Sydney's age is 24
Step-by-step explanation:
72 divided by 3 gives you 24.
24+24 is 48 which is Devaughn's age.48-72 gives you 24 which is Sydney's age
F(x)=x² +2 —(1)
f[g(x)]=(g(x))² +2 —(2)
substitute the function g(x) into (2)
f[g(x)]= (1-3x)² +2
now x=-1
fg(-1)=(1-3(-1))² +2
=(1+3)² +2
= 16+2
= 18
Answer:
B
Step-by-step explanation:
I just know it.