Answer:
yeah it si correct
Step-by-step explanation:
4x-5x²+6x³/2x=4x-5x²+3x²=4x-2x²
therefore the degree of the following polynomial is 2
1.25kg
useing the problem the half life equation will be:
f(x)=5(0.5)^(x/140)
x is amount of days
so plugging in 280 for x will get 1.25kg
y= - frac4/7 x + frac9/7
