Answer:
The probability that the next failure will not occur before 30 months have elapsed is 0.0454
Step-by-step explanation:
Using Poisson distribution where
t= number of units of time
x= number of occurrences in t units of time
λ= average number of occurrences per unit of time
P(x;λt) = e raise to power (-λt) multiplied by λtˣ divided by x!
here λt = 25
x= 30
P(x= 30) = 25³⁰e⁻²⁵/ 30!
P (x= 30) = 8.67 E41 * 1.3887 E-11/30! (where E= exponent)
P (x=30) = 1.204 E31/30!
Solving it with a statistical calculator would give
P (x=30) = 0.0454
The probability that the next failure will not occur before 30 months have elapsed is 0.0454
Okay. So, to find the percent change, we have to do change/original. In this case, it would be 12/15, because 15 and 27 are apart by 12. 12/15 is 0.8. Multiply that by 100 and you get 80. There was an 80% markup of the chair sold to the antique dealer.
Answer:
Dimension of the solution space of the homogeneous system =dimension of kernel=3.
Step-by-step explanation:
Given a matrix has 3 rows and 5 columns .
Dimension of Domain=Number of columns in the matrix=5d
Dimension of the row space =2d
We know that dimension of row space= rank of matrix=2d
Rank-nullity theorem : Rank+nullity= dimension of domain=Number of columns in the matrix.
By using rank-nullity theorem
2+nullity=5
Nullity=5-2
Nullity=3
Dimension of kernel=3d
Dimension of kernel=Dimension of solution space
Dimension of solution space=3d
Hence, the dimension of solution space of the homogeneous system =3d.
its is the same as multiplying normally .
For example 1-2-3-4-5-6-7-8- 2 times 2
you just take the starting number (2) and times it by the other number (2) and youll get 4
Answer: Last option.
Step-by-step explanation:
Observe the base of the pyramid, which is a regular hexagon. You can see that there is a right triangle.
The area of the triangle can be calculated with this formula:
Where "b" is the base and "h" is the height.
You can say that the apothem is the height of the right triangle, then, you need to find the base applying the Pythagorean Theorem:
Then, the area of the triangle is:
Since the base of the pyramid is a regular hexagon, then you can multiply by 12 the area of the right triangle calculated above, in order to find the area of the hexagon. Then you get:
