h = 2
You must isolate the variable to solve using the order of operations, or PEMDAS.
Subtract 3 from both sides of the equation, and subtract 2h from both sides of the equation.
Divide both sides of the equation by 2.
I know u need to add diverse then add again then u will get your answer which is 25
Question 9 answer is 0.375
Question 10 answer is 0.03125
Answer:
C. 8.52624...
Step-by-step explanation:
The reason that C is different is because all of the other decimals are terminating decimals (meaning that they end or stop), while C is a repeating decimal, because it never ends.
Since we are given with the identity of the chemical as Carbon-14, we obtain the half-life of the chemical from a reliable source and get a value of 5730 years. The equation that we are going to use for this item is,
A(t)/A(0) = (0.50)^(n/5730)
where A(t) is the current amount, A(0) is the initial amount and n is the number of years. We know from the given that the ratio of A(t) and A(0) is equal to 0.63. Substituting this to the given,
0.63 = 0.50^(n/5730)
n = 3819.48
Thus, the sample is approximately 3819.5 years old.
