84
84 = 42 x 2
The greatest common factor is 42, because 84/2 = 42, & you want the biggest number possible
Usually i need two or more numbers so.. this is the best i can get out of one number
hope this helps tho :D
Bella can cut about 24 pieces because you have to divide 85 feet by 3.5 feet to find out how many pieces which is 24.285 and so on but you just round to 24.
A - 2b = 2 . . . (1)
a + b = 2(b + 3)
a + b = 2b + 3
a - b = 3 . . . (2)
(1) - (2) => -b = -1 => b = 1
From (2): a - 1 = 3 => a = 3 + 1 = 4
Therefore, a = 4 and b = 1
Recall the half-angle identity:
So in order to find
, we only need to know the value of
. But there are two possible values. To decide which to take, we use the given information: we know that
lies in quadrant III, which means
, so
, which places
in quadrant II. In this quadrant, the sine of angle is positive, and so
is an angle of a ray whose terminal point,
lies on the circle
. The
-coordinate is all we need to know in order to find that
. So,
