Answer:
63.6 m^2
Step-by-step explanation:
A = (pi)r^2
r = d/2 = 9 m / 2 = 4.5 m
A = (3.142)(4.5 m)^2
A = 63.6 m^2
Since the focus is at (0, 2) and directrix is y = -2
point where both of these have the same x-value will be at (0, 2) for the focus and (0, -2) for the directrix.
The vertex will also have the same x-value so it will be (0, y).
y-value is half-way between the y-value of the focus, and the y-value of the directrix at x = 0.
Directrix y-value is -2 at x = 0 and for the focus it's 2 at x = 0.
Halfway between y = -2 and y = 2 is y = 0.
So the vertex of the parabola occurs at (0, 0).
So that's x^2 = 4ay = 4(2)y = 8y.
y = 1/8*x^2
hope it helps
6 3/3 = x + 2/3
18/3 = x + 2/3
18/3 - 2/3 = x
16/3 = x
5 1/3 = x
Answer:
the cost of each cookie is 
the cost of each muffin is 
Step-by-step explanation:
Let
x-----> the cost of each cookie
y----> the cost of each muffin
we know that
-----> equation A
-----> equation B
Using a graphing tool
The solution of the system of equations is the intersection point both graphs
The intersection point is 
see the attached figure
therefore
the cost of each cookie is
the cost of each muffin is
Answer:
A. x = 50, y = 130, z = 130
Step-by-step explanation:
50 and z are adjacent angles,
Sum of adjacent angles = 180,
50 + z = 180
z = 180 - 50
z = 130
z and x are adjacent angles,
Sum of adjacent angles = 180,
x + z = 180
130 + x = 180
x = 180 - 130
x = 50
z and y are opposite angles,
Opposite angles are equal in a parallelogram,
z = y = 130
