Answer:
13.856406460551 m
Step-by-step explanation:
Answer:
Equation of line: y=3x-18
Step-by-step explanation:
Point: (4,-6) and slope = 3
y=3x-18
Answer:
It will not be very helpful to use this point because it lies on the x-axis. Which doesn't show what area to shade.
Step-by-step explanation:
2.(x + 6).(3x - 2) = 0
In a multiplication if one of the terms is equal to 0, everything is equal to 0
So:
If x + 6 = 0, we have a root
x + 6 = 0
x = -6
If 3x - 2 =0, we have a root
3x - 2 = 0
3x = 2
x = 2/3
So our least root is -6 and the greatest is 2/3
Answer:
a)
b)
c)
d)
Step-by-step explanation:
Let X the random variable that represent the number of material anomalies occurring in a particular region of an aircraft gas-turbine disk. We know that
The probability mass function for the random variable is given by:
And f(x)=0 for other case.
For this distribution the expected value is the same parameter
, ,
a. Compute both P(X≤4) and P(X<4).
Using the pmf we can find the individual probabilities like this:
b. Compute P(4≤X≤ 8).
c. Compute P(8≤ X).
d. What is the probability that the number of anomalies exceeds its mean value by no more than one standard deviation?
The mean is 4 and the deviation is 2, so we want this probability