Answer
6
Step-by-step explanation:
9514 1404 393
Answer:
y =1/8(x -1)^2
Step-by-step explanation:
The vertex is halfway between the focus and directrix, so has y-coordinate (2-2)/2 = 0. The x-coordinate of the vertex is the same as that of the focus. The focus-vertex distance (p) is 2-0 = 2. Where the vertex is (h, k), the equation is ...
y = 1/(4p)(x -h)^2 +k
For p=2, (h, k) = (1, 0), the equation of the parabola is ...
y = 1/8(x -1)^2
Let x = the first number
Let x - 9 = the second number
Let 2(x - 9) = the third number
Now we are told that:
x + (x - 9) + 2(x -9) = 4x - 27 = 109
This means that x = 34 - the first number
25 = the second number
50 = the third number
Answer:
P = 27.2c-7.2d
Step-by-step explanation:
It is given that,
The width of a rectangle is (8.3c-8.4d)
The length of a rectangle is (5.3c+4.8d)
The perimeter of a rectangle is equal to the sum of its all sides i.e.
P = 2(l+b)
P = 2(8.3c-8.4d+5.3c+4.8d)
P = 2[(8.3c+5.3c)+(4.8d-8.4d)]
P = 2(13.6c-3.6d)
⇒P = 27.2c-7.2d
Hence, the expression that represents the perimeter of the rectangle is 27.2c-7.2d.
Square: a number times itself, feet: unit of measurement, a square foot is often used following the area of a shape.
