Answer:
he circle has a radius of π inches, so use a radius of about 3.1 inches.
Step-by-step explanation:
The circumference of a circle can be described as the linear distance round the circle
The circumference of a circle = 2nr
n = 3.14
r = radius
the diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.
A radius is half of the diameter
diameter = 2r
If diameter = n2
diameter = 3.14 x 2 = 6.28
Radius = 1/2 x diameter = 6.28/2 = 3.1
Answer:
(x-5)² + y² = 4
Step-by-step explanation:
formula of circle: (x-h)² + (y-k)² = r² where (h,k) is coordinate of center and r is radius
center: (5 , 0) r = 2
Equation: (x-5)² + y² = 4
Each person will get two and one quarter (2.25) pies
Solution:
Let the original number be x .
As per the problem I took a number, wrote a 9 to the right of it,
So we have x9
Again added the doubled original number to the result.
x9+2x
The resulting sum is 633. so we can write
![x9+2x=633\\ \\ x*10+9*1+2x=633\\ \\ 10x+2x=633-9\\ \\ 12x=624\\ \\ x=52](https://tex.z-dn.net/?f=x9%2B2x%3D633%5C%5C%0A%5C%5C%0Ax%2A10%2B9%2A1%2B2x%3D633%5C%5C%0A%5C%5C%20%2010x%2B2x%3D633-9%5C%5C%0A%5C%5C%0A12x%3D624%5C%5C%0A%5C%5C%0Ax%3D52)
Hence the original number is 52.
12:57
+ :30
12:87 = 1:27
<em>Add the 60 minutes to 12.</em> 87 minus 60 equals 27