Hi,
The definition (see attachment) says that f(x) is a solution to
the differential equation if it satisfies the equation for every x
in the interval.
Assuming that I have a differential equation that I want to
solve and the D.E. has an interval I_1, and I've
come up a solution with...
Homework Statement
A subway train made up of n cars is boarded by r passengers (r < n),
each entering a car completely at random. What is the probability of the
passengers all ending up in different cars?
Homework Equations
P(A) = \frac{N(A)}{N}
A - no more than one passenger...
Good day,
The sound level in decibels is
β = 10log_{10}(\frac{I}{I_0})
Where beta is measured n decibels, I the intensity in question and I_0 is the reference intensity. Since you have a decrease of 20 decibels in your reference intensity (the source), you may re-write the above...