Answer:
c
Explanation:
because they receive the highest intensity of sunlight
Set this up as
10 = 40 (1/2)t/28
and solve for t in years.
10/40 = (1/2)t/28
log(0.25) = (t/28) log(0.5)
t = 28 log(0.25) / log(0.5) years = 56 years
Test the answer:
56 years = 2(28 years) = 2 half-lives, so the remaining amount should be 1/2 of 1/2 of the initial amount, i.e. 1/4 of the initial amount, and 10 mg = 1/4 of 40 mg.
Answer:
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Answer:
this is the answer
Explanation:
Pretoria was ranked as the most dangerous city in the country in 2020/21, with the highest crime score and lowest safety score. ... This is followed by assault and robbery, and property crimes like theft and motor vehicle theft
i hope it will help you
