Dont look at this Answer bc i just need points but it looks like its going to be 78
5x+3x^4+15-7x^3
In standard form:3x^4-7x^3+5x+15
Degree:quartic i believe
# of terms:polynimial or 4 terms
Answer:
western beach: y = -2x + 100
dunes beach : y = 5x + 20
set the equations equal to each other
-2x + 100 = 5x + 20
100 - 20 = 7x
80 = 7x
80/7 = x
x ~ 11.43 years
Step-by-step explanation: