You divide both sides by 4, since you want to solve for “v”. So 4v/4 = -4/4. v=-1
Answer:
Step-by-step explanation:
The geometric distribution represents "the number of failures before you get a success in a series of Bernoulli trials. This discrete probability distribution is represented by the probability density function:"
Let X the random variable that measures the number os trials until the first success, we know that X follows this distribution:
In order to find the expected value E(1/X) we need to find this sum:
Lets consider the following series:
And let's assume that this series is a power series with b a number between (0,1). If we apply integration of this series we have this:
(a)
On the last step we assume that and , then the integral on the left part of equation (a) would be 1. And we have:
And for the next step we have:
And with this we have the requiered proof.
And since we have that:
Answer:
46 minutes (Answer B)
Step-by-step explanation:
One way of doing this is to realize that it's 14 minutes to 4 p.m. and then another 32 minutes past 4 p.m. Thus, the total elapsed time was
(14 + 32) minutes, or 46 minutes (Answer B)
Answer:
y=10 when x=7
Step-by-step explanation:
y=2x-4
y=10
Substitute y with "10": 10=2x-4
Add 4 on both sides: 14=2x
x=7
After Jen read 4/5 (12/15) of a book there was 1/5 left.
The next day she reads 2/3 of 1/5 which equals 2/15 of the book
So by 2 days 14/15 of the book is read and there is 1/15 left.