Answer:
f(x+5)=3x+16
Step-by-step explanation:
lets name " x+5" T
so f(T)=3T+1
now use "x+5" replace T
now its f(x+5)=3(x+5)+1=3x+15+1=3x+16
question 4
using sine rule:
question 5
using cosine rule:
19/4
8
Multiply both sides by 16
x = (2*16)/4
x = 32/4
x = 8
