Answer:
13.92
Step-by-step explanation:
Answer: Option D

Step-by-step explanation:
For a quadratic function of the form

The x coordinate of the vertice is:

In this case the function is:

So

The x coordinate of the vertice is:

The y coordinate of the vertice is:

The vertice is: (-3, -11)
The form e vertice for a quadratic equation is:

Where
the x coordinate of the vertice is h and the y coordinate of the vertice is k.
Then h=-3 and k =-11
Finally the equation
in vertex form is:

Since the standard form of the circle is:
(x-h)^2+(y-k)^2=r^2, and (h,k)=(0,0) and r=10 so we have:
x^2+y^2=100 Looking at the points you have:
(√10, 0) does not work as (√10)^2+0^2=10+0=10
(0, 2√5) does not work as 0^2+(2√5)^2=0+20=20
(5√2, 5√2) works as (5√2)^2+(5√2)^2=50+50=100
Answer:
what grade
Step-by-step explanation:
Answer:
4656.46km
Step-by-step explanation:
Given that:
Abuja (Nigeria) = (9°N,7°E)
Bonn (Germany) = (51°N,7°E)
Longitudinal difference = 51 - 9 = 42°
Radius of the earth (R) = 6400
Distance = θ/360 * 2πr
r = Rcos7° = 6400 * cos7 = 6352.2953
Hence,
Distance = (42/360) * 2 * 3.142 * 6352.2953
Distance = 0.1166666 * 2 * 3.142 * 6352.2953
Distance = 4656.4757 km