The total is 300 cans. And 46percent of the total is 138. Therefore 138canned food was collected on Thursday.
Using the identity cos(2x) = 2 cos^2x - 1
18 + 9(2 cos^2 x - 1) = 27 cos x
18cos^2 x - 27 cos x + 9 = 0
2 cos^ x - 3 cos x + 1 = 0
(2 cos x - 1 )(cos x - 1 ) = 0
cos x = 1/2 , 1
x = pi/3, 5pi/3, 0, 2pi answer
Ten plus five equals 15. 8 plus 2 = 10.
Answer: 8(x-4) 8 was the common term. So just pull out the 8.
