Answer:
B. 73.5
Step-by-step explanation:
Using Excel (you can use similar software or a scientific calculator) we get the figure attached. After adding the trend line, we get that the equation that best fits the data is:
y = 0.0034*e^(0.7129*x)
Replacing with x = 14 we get:
y = 0.0034*e^(0.7129*14)
y = 73.5
Answer: Option A is correct that is
Explanation:
we will substitute the values of n in given expression
when substituting n=1 we get in =
when n=2 we get
when n =3 we get ;3 factorial that is 3! = 3 *2*1 = 6
when n=4 we get ;4! = 4*3*2*1 = 24
Note: factorial means the product of the terms getting multiplied till 1
suppose n! will be equal to n(n-1)(n-2)(n-3).......1
Answer:
The age of the spear head is of 1938 yers.
Step-by-step explanation:
The amount of carbon 14 after years is given by the following equation:
In which Q(0) is the initial amount and r is the decay rate.
The half life of carbon 14 is 5700 years.
This means that
So
So
We have to find:
t for which Q(t) = 0.79Q(0). So
Rounding to the nearest year.
The age of the spear head is of 1938 yers.