Answer:
12,215 ft³
Step-by-step explanation:
The formula for the volume of a cone is:
V = (1/3)(area of base)(height).
Here the height is 9 ft and the diameter of the (round) base is 12 ft.
First we need to determine the area of the base.
If the diameter is 12 ft, then the radius is half that, or r = 6 ft. The area of the base is then A = πr², which in this problem is A = π(6 ft)² = π (36 ft²). Using 3.14 to approximate π, we get A = 4071.5 ft², which we will round u p to A = 4012 ft².
As before, the volume of this statue is V = (1/3)(area of base)(height), which here comes out to:
V = (1/3)(4072 ft²)(9 ft) = 12,215 ft³ (where I have rounded up to the nearest unit).
The answer to your question is c.
"<span>F(x)=-1/2x^2+4 Important: enclose -1/2 inside parentheses.
vertex: For quadratic y=ax^2+bx+c, x value at vertex is -b/2a.
min or max: Corresponds to vertex x value; must also find y value
axis of symmetry: Same as x=value of vertex
y-intercept: Set x=0 and solve for y
domain: Domain is "all real numbers" when f(x) is a polynomial.
range:" Here, the graph opens down (because (-1/2) is negative), so the
range begins at -infinity and extends up to and including the y-
value at the vertex.
</span><span>F(x)= (-1/2)x^2+4
vertex: Since a = -1/2 and b = 0, x-value at vertex is -b/(2a), or
-(0) / (2[-1/2]) = 0. Graph is symmetric about the y-axis.
The function is F(x) = (-1/2)x^2 +4. At x = 0, y=4.
Thus, the vertex is at (0,4).
maximum occurs at the vertex, and is (0,4). Max value of function is 4.
axis of symmetry: see "vertex," above. x = 0 is that axis.
domain: since this is a polynomial function, the domain is the set of all real numbers.
range: (-infinity, 4] This includes y =4 and all smaller y values.
y-intercept: Set x=0 and find y. As before, y=4. y-intercept is (0,4).</span>
I think the answer is 8
but im not 100% sure
Answer:
Step-by-step explanation:
