F(x)=3x+1 and g(x)=x^2 +1 what is f(g(x))

given f(x)=3x+1

g(x)=x^2+1

now,

f(g(x))=f(x^2+1)

=3(x^2+1)+1

= 3x^2 +3+1

=3x^2+4

cut 138 centimeters off

step-by-step explanation:

250-112 = 138

the answer is 62.8 cubic units