The area of a circle is a= 2 pi r ... so just Take half of that pi (radius) ... and the radius is 3 because 6 is the length across the circle ot the diameter and the diameter is 2 times the radius... your answer is 3.14 (3) = 9.42
Answer:
y = (√3)/2
Step-by-step explanation:
The unit circle has equation ...
x^2 +y^2 = 1
For x = 1/2, the value of y can be found to be ...
(1/2)^2 +y^2 = 1
y^2 = 1 - 1/4 = 3/4 . . . . . subtract 1/4
y = √(3/4) . . . . . . . . . . take the square root (y > 0 here)
y = (√3)/2
Answer:
Step-by-step explanation:
The square root of 2 is irrational, the square root of 3, 5, 6, 7, 8, 10, and any other positive number that is not a perfect square. You can find more by dividing an integer by an irrational number. (5 / sqr rt of 2...)
There are more irrational numbers than there are rational numbers. There are aleph-null rational numbers and aleph-one irrational numbers. (Aleph-null is the smallest size of infinity, aleph-one is the second size.)
Answer:
this confusing
Step-by-step explanation:
