I not know what a sample variance or a standard deviation is.
Answer:
3.14
Step-by-step explanation:
Radius = 1
1^2 times pi = 1 pi
1 pi is about = 3.14
Answer: <em><u>5 11/12</u></em>
Step-by-step explanation:
Since they only walked on Monday, Wednesday and Thursday,
You have to add 3/4 + 1 2/3 + 3 1/2
So, 3/4 + 1 2/3 + 3 1/2 =
3/4 + 2/3 + 1/2 = 1 11/12
1 + 3 = 4
4 + 1 11/12 = 5 11/12
Answer:
(x-2)^2+y^2=16
Step-by-step explanation:
If the center of the circle is (h,k) and the radius is r, then the equation of a circle is (x-h)^2+(y-k)^2=r^2 (with the Pythagorean theorem)
So, the center of this circle 0 is (2,0) and the radius is 4. Thus, the equation is (x-2)^2+y^2=16
Answer:
see explanation
Step-by-step explanation:
We require 2 equations with the recurring part after the decimal point.
Let x = 0.555..... → (1)
Multiply both sides by 10, then
10x = 5.555..... → (2)
Subtract (1) from (2) thus eliminating the recurring decimal
(10x - x) = (5.5555 - 0.5555 ), that is
9x = 5 ( divide both sides by 9 )
x =