Answer:
The half life is 14.4 seconds because the half life is the time it takes for half of a sample to decay.
Hope this helps!
V=hpir²
h=4
d/2=r=15/2=7.5=r
V=4pi7.5²
V=4pi56.25
V=281.25pi
3.14=pi
V=706.7 ft³
The sampling strategy she use was a quota.
Quotas are meant to establish boundaries on the number of specific goods that are allowed to be lawfully imported into the country throughout a distinct period of time. In that, quotas are similar embargoes, except quotas don´t have explicit political purposes as embargoes do.
A Fixed quota would be a maximum amount not to be surpassed, while a tariff rate surcharge allows it, but with a higher duty.
Answer: x = 3.6 Thats the answer.