Answer: -449/50
Step-by-step explanation:
-9.98
1) Put in fraction form.
-998/100
2) Simplify.
-449/50
Answer:
1
Step-by-step explanation:
can be expressed as =
Similarly can be expressed as =
Numerator becomes:
· =
Denominator becomes:
· =
Since numerator = Denominator,
Answer = 1
Edit reason: typo
Given: <span>f(x) = log3 (x + 1), look for f^-1 (2)
We are looking for the inverse of a function. The inverse of the function can be obtained by switching the variables and obtaining the values of the new function, before substituting f(2). Using a calculator:
</span><span>f^-1 (2) = 8</span>
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>