Reduce the numbers with 3. Any expression divided by 1 remains the same.
Answer:7881 years
Step-by-step explanation:
You can use the equation
fraction remaining = 0.5n where n is # of half lives elapsed
n = ?
fraction remaining = 1 - 0.612 = 0.388
0.388 = 0.5n
n = 1.37 = the # of half lives
1.37 x 5750 yrs = 7881 years
Answer:
the C one is 18in and the E one is 12in
Step-by-step explanation:
follow order of operations:
3+16/4 = 3+4 = 7
