Answer:
x^6 + 2 x^5 - 6 x^4 + 3 x^2 + 6 x - 18
Step-by-step explanation:
f(x) = x^2 +2x-6
g(x) =x^4+3
We want to find f*g
(f*g)(x) = (x^2 +2x-6)(x^4+3)
Distribute
=x^2*x^4 +3x^2 +2x*x^4 +2x*3 +-6x^4 -6*3
= x^6 +3x^ +2x^5 +2x^3 -6x^4 -18
Combine like terms
=x^6 + 2 x^5 - 6 x^4 + 3 x^2 + 6 x - 18
Density=mass/volume.
1) we have to calculate the iron volume in liters.
iron volume=second level - first level=49.10 ml-45.50 ml=3.6 ml
3.6 ml=3.6 ml(1 liter / 1000 ml)=0.0036 liters
2) we calculate the mass iron in kg.
28.5 g=28.5 g(1 kg /1000 g)=0.0285 kg.
2) we calculate the density of iron.
density=0.0285 kg / 0.0036 liters=7.92 kg/L
7.92 kg/l=7.92 kg/L(1000 g/1Kg)(1000 cm³/1 L)=7.92 g/cm³.
answer: From this information the Iron density is 7.92 Kg/L or 7.92 g/cm³.
You can multiply it out to get
... 3x² - 9x + 6
and you can write it in vertex form as
... 3(x -3/2)² -3/4
