A is 0.0028
and B is 0.054
If AC bisects < BAD, it means it cuts it into 2 equal parts
so < BAC = < CAD
3x + 12 = 5x
12 = 5x - 3x
12 = 2x
12/2 = x
6 = x
< BAC = 3x + 12.......3(6) + 12 = 30 degrees <===
X greater then or equal to -1
Every 56 seconds, the radioactive substance is divided in half.
224 / 56 = 4
We need to cut the substance in half 4 times.
896 / 2 = 448
448 / 2 = 224
224 / 2 = 112
112 / 2 = 56
After 224 seconds, there will be 56 grams of the radioactive substance left over
