Answer:
Step-by-step explanation:
In this problem
we have
F(0,5) and directrix at y=-5
so
Is a vertical parabola open upward
we know that
The equation of a vertical parabola in standard form is
where
p is the focal distance
(h,k) is the vertex
we have
The vertex is the origin (0,0)
and
p=5
substitute
Answer:
156
Step-by-step explanation:
While solving we will have to use the area formula of the rectangle, which is :A=w*l ; length*width=A.
Steps:
1)let’s consider that the shape is a full rectangle. => 16*12=192.
2)9*2=18 -> 18*2=36
3)192-36=156.
Answer:
i think its 18
Step-by-step explanation:
X = smaller number, y = larger number
x + y = 15.....x = 15 - y
4x = 2y - 60
4(15 - y) = 2y - 60
60 - 4y = 2y - 60
60 + 60 = 2y + 4y
120 = 6y
120/6 = y
20 = y <==== larger number is 20
x + y = 15
x + 20 = 15
x = 15 - 20
x = - 5
