Answer:
4) 0.001
Step-by-step explanation:
The amount (a) present in h hours is ...
a(h) = (initial value)×(1/2)^(h/(half-life))
6 days is 6×24 hours, so the amount remaining is ...
a(6×24) = 50×(1/2)^(6×24/9) = 50/2^16 ≈ 0.001 . . . . milligrams
You do 2x20 which is basically 2x2 (4) add a zero and your answer is 40
Multiply the fraction by both things in the parenthesis.
Answer: I would say 24 manybe...I might be wrong
Step-by-step explanation:
