Answer:
and
Step-by-step explanation:
First of all, even if the system is of 4th degree, by looking at the shape of the equations I am expecting up to 2 solutions.
The easiest way to solve it, since both equation are in the form y= something, is to equate both RHSs.
which tells us that either or
Now we can replace these value of x in one of the two to finish our work:
I belive it is a constant
Answer: 8 is the anwser
Step-by-step explanation:
Just minus 5 feet from the new height which is 13ft, and the equation will be 13-5, and therefore the tree grew 8 feet