9514 1404 393
Answer:
yes
Step-by-step explanation:
At each height above the base, the cross section of each cone shown is the same (a circle with the same diameter), so Yes, Cavalieri's Principle applies.
Answer:

Step-by-step explanation:
move variable to the right-hand side and change its sign

divide both sides of the equation

For the first one the answer is 2
f(x) = 3(x^2 + 3x) + 12 = 3(x+1.5)^2 +5.25
So you can see the vertex is at (0,5.25) when x = -1.5
<span>The axis of symmetry then lies in x = -1.5</span>