It is the Top left answer!
Answer:
It is incorrect because the following gives you a total of 171 and not 1.
Step-by-step explanation:
He added .61 ml of the liquid
Answer:
after 6 half lives: 210(1/2)^6= 3.28125
Step-by-step explanation:
isotope to be reduced to half its initial mass at first:
210(1/2)=105 half it is original weight
after second life: 210(1/2)^2=105(1/2)=52.5
after third : 210(1/2)^3=52.5/2=26.25
after fourth : 26.25/2=12.125
after fifth : 13.125/2
after 6 half lives: 210(1/2)^6= 3.28125
1. 10=5(2)
2.k=5
3. 10=1/5(2)
4.2=5(10)