Answer:
a=A/8
Step-by-step explanation:
This MIGHT be the answer, I am 99% sure!
Answer:
around 36 in (round 35.98 to nearest tenth)
Step-by-step explanation:
7978 years
Step-by-step explanation:
A = A02^(-t/hl)
where hl = half-life.
Dividing both sides by A0 and taking the logarithm, we get
ln(A/A0) = -(t/hl)ln2
or solving for t,
t= -(hl)ln(A/A0)/ln2
note that A/A0 = 0.38
t = -(5715 yrs)[ln(0.38)/ln2]
= 7978 years