To solve this problem, what we can do first is to find for the value of
probability (p value) using the standard distribution tables for z. Looking at
the table, we can see that the p values are:
when z = - 2.41:
p value = P (z = - 2.41) = 0.0080
when z = 0:
p value = P (z = 0) = 0.5000
The probability that z lies between – 2.41 and 0 is the difference of the
two probabilities, with the bigger probability subtracted by the smaller
probability. That is:
P (0 ≥ z ≥ -2.41) = 0.5000 - 0.0080
P (0 ≥ z ≥ -2.41) = 0.4920
Answer:
The hourly decay rate is of 1.25%, so the hourly rate of change is of -1.25%.
The function to represent the mass of the sample after t days is
Step-by-step explanation:
Exponential equation of decay:
The exponential equation for the amount of a substance is given by:
In which A(0) is the initial amount and r is the decay rate, as a decimal.
Hourly rate of change:
Decreases 26% by day. A day has 24 hours. This means that ; We use this to find r.
The hourly decay rate is of 1.25%, so the hourly rate of change is of -1.25%.
Starts out with 810 grams of Element X
This means that
Element X is a radioactive isotope such that its mass decreases by 26% every day.
This means that we use, for this equation, r = 0.26.
The equation is:
The function to represent the mass of the sample after t days is
Step-by-step explanation:
use the formula √(x2-x1)^2+(y2-y1)^2
Answer:
I think is b or a...........................
Step-by-step explanation:
B.....