The equation is false, because 3

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Easy and fast way to do it:
Go to google and type, " volume of a cone calculator" and type in the radius and height.
y = 3(x + 4)^2 + 31
Step-by-step explanation:
We can convert the given quadratic equation into its vertex form by completing the square:
y = 3x^2 + 24x + 43
= 3(x^2 + 8x) + 43
= 3(x^2 + 8x + 4) + 31
= 3(x + 4)^2 + 31
This is the vertex form of the given quadratic equation with (-4, 31) as its vertex
B. Because 5 t 5 t 4 t 4 equals 18