It's a polynomial of degree 2. Every polynomial of degree 2 is a parabola
I believe with vertical angles, they are equal to each other.
Therefore,
2y + 5 = 4y
subtract 2y from both sides
5 = 2y
divide 2 from both sides
y = 5/2
with what answer do u need help
The half-life of the radioactive substance is 67.95 hours.
