Answer: 3
Step-by-step explanation:
Let x = the number
x + 3 = 4x - 6
-3x = -9
x = 3
Answer:
160 is greater than 2 and a half minutes.
Step-by-step explanation:
Answer:
a) P(1) = 0.1637
b) 
c) E(x) = 0.2
Step-by-step explanation:
If X follows a poisson distribution, the probability that a disk has exactly x missing pulses is:

Where m is the mean and it is equal to the value of lambda. So, replacing the value of m by 0.2, we get that the probability that a disk has exactly one missing pulse is equal to:

Additionally, the probability that a disk has at least two missing pulses can be calculated as:

Where
.
Then,
and
are calculated as:

Finally, In the poisson distribution, E(x) is equal to lambda. So E(x) = 0.2
The slope formula can be used to prove a triangle has a right angle
Answer:
17310.6
$540.15 multiply 30
because if they ask all in every month is 540.15
and she got 30 year