Answer:
6×10⁶ cubic feet
30:1
Step-by-step explanation:
Water goes over Niagara Falls at a rate of 180 million cubic feet every 
hours.
Now, 180 million cubic feet ≡ 18×10⁷ cubic feet
and hours =30 minutes.
As the water is falling at a constant rate, hence, the unitary method of calculation can be applied.
Therefore, in 1 minute, the amount of water that goes over the falls will be
18×10⁷/30 =6×10⁶ cubic feet.
So, the amount of water passing over the falls is reduced in the ratio 30:1. (Answer)
The given equation of parabola is:
Part 1) Focus of the Parabola
In order to find the focus and equation of directrix, we first have to convert the given equation to standard form of parabola.
The focus of the general equation of parabola shown below lies at (h+p, k)
Comparing our equation to the general equation we get:
h=0
k=0
p=6
So the focus of given parabola will be (0+6, 0) = (6,0)Part 2) Directix of the ParabolaThe directrix of the general parabola shown above lies at:
x = h - p
Using the values of h and p, we get
x = 0 - 6
x = -6
So, the directrix of the given parabola has the equation x = -6
Answer:
The positive numbers are 51 and 53
Step-by-step explanation:
Let first odd integer be x and another odd integer is (x+2).
According to the given condition,
The product of two positive consecutive odd integers is 2703 i.e.
x(x+2) = 2703
It is a quadratic equation. It can be solved as follows :
x = 51 and x = -53
Neglecting negative sign,
The first number = 51
Another number =(51+2) = 53
Hence, the positive numbers are 51 and 53.
Answer:
if no one answers pic b cuz i got good luck
Step-by-step explanation:
Cost of 1 coffee: £1.08
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