Hello:
<span>the symmetries : axis- x </span>
<span>the symmetries : axis- x </span>
Hello help pls :3333333 I only need the answer to part B which asks about the mean
2 answers:
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Answer:
here (edit I made a mistake)
Step-by-step explanation:
9)
10) y = x - 3
11)
12)
these are the slop int forms, my bad...
sorry
Answer:
Hope this helps!
Step-by-step explanation:
The amount of substance left of a radioactive element of half life, 
after a time, t, is given by:
Given that <span>potassium-40 has a half life of approximately 1.25 billion years.
The number of years it will take for 0.1% of potassium-40 to remain is obtained as follows:
Therefore, </span><span>the maximum age of a fossil that we could date using 40k is 12.5 billion years.</span>
Given that <span>potassium-40 has a half life of approximately 1.25 billion years.
The number of years it will take for 0.1% of potassium-40 to remain is obtained as follows:
Therefore, </span><span>the maximum age of a fossil that we could date using 40k is 12.5 billion years.</span>