Answer:
f(x)=x^2+3
f(x+y)=(x+y)^2+3
this is done by replacing x with (x+y)
f(x+y)=x^2+2xy+y^2+3
therefore : f(x+y)= x^2+y^2+2xy+3
Answer: 96∘
Step-by-step explanation:
The total is 6400, but if subtracted, its 1400
Answer:
independent: year, height, laps
dependent: shoe size, calories burned, number of girls
Answer:
18
Step-by-step explanation:
Delta math
