Answer:
8.61 min
Explanation:
original mass= 12.65
first half life = 12.65/2 = 6.325
second half life = 6.325/2 = 3.1625
Note : 3.1625 is the closest to the value (3.115) given so we work with it
total time for decay =17.22
therefore two decays = 17.22/2= 8.61
You should check A, and D.
A control variable is the one element that is not changed throughout an experiment.A dependent variable is a variable whose variation does not depend on that of another.A independent variable is a variable whose value depends on that of another.
Because they are legal documents they can be used in a court of law
Answer:
The probability for the proportion of apples with diameters less than 3.5 inches is 0.1056.
Explanation:
For a normal distribution, z score is calculated using this formula: (X-μ)/σx
Where Mean, μ = 4
Standard deviation, σ = 0.400
The probability for the proportion of apples with diameters less than 3.5 inches is expressed below:
Probability = P(X<3.5)
= P(Z<-1.25)
Probability = 0.1056