Answer:
y = -0.005x² + 50
Step-by-step explanation:
The diameter is 200 feet, so the parabola has roots at (-100, 0) and (100, 0). The maximum height is 50, so the vertex of the parabola is at (0, 50).
Using vertex form of a parabola:
y = a (x − h)² + k
y = a (x − 0)² + 50
y = ax² + 50
Plugging in either root:
0 = a (100)² + 50
a = -0.005
y = -0.005x² + 50
The formula for a rotation 270° counterclockwise about the origin is (x,y)--->(y,-x)
D'(4,2) E'(7,-4) F'(3,-10) G'(0,-8)
Answer:
A = 1725 ft^2
Step-by-step explanation:
A = <u>a + b</u> * h
2
A = area
a = top
b = base
h = height
A = <u>a + b</u> * h
2
A = <u>65 + 50</u> * 30
2
A = 57.5 * 30
A = 1725 ft^2
