The terms of the polynomial are 45b and 27. You can start finding the GCF by finding the GCf of 45 and 27.
The factors of 45 are 1, 3, 5, 9, 15, and 45.
The factors of 27 are 1, 3, 9, and 27.
Their highest common factor is 9. Since 27 doesn't have a variable attached to it, the GCF can only be a number. So, the GCF of the terms is 9.
E [x] = Expected value of X
μ = average
σ = standard deviation
V (X) = Variance
σ = (V(X)) ^ 0.5
E [X] = X * P (x)
Assuming that the number of books purchased is a discrete random variable with mean μ = E [X]
Then the variance of X can be written as V (X) = E [X-μ]^2
We started finding the average μ
μ = 0 * 0.20 + 1 * 0.30 + 2 * 0.50
μ = 1.3
Once the average is found, we can calculate the value of the variance
V (X) = 0.20 * (0-1.3) ^ 2 + 0.30 * (1-1.3) ^ 2 + 0.50 * (2-1.3) ^ 2
V (X) = 0.61
Now we know that from the variance the standard deviation can be obtained by doing:
σ = (V (X)) ^ 0.5
Finally
σ = 0.781
The given equation is ![-2y+2y+3=3](https://tex.z-dn.net/?f=%20-2y%2B2y%2B3%3D3%20)
By solving the given equation, we get
![0\times y=0](https://tex.z-dn.net/?f=%200%5Ctimes%20y%3D0%20)
![0=0](https://tex.z-dn.net/?f=%200%3D0%20)
While solving the equation,we get 0=0.
Therefore, the given equation is true for all the values of y.
Hence, we can say that the given equation has infinite number of solutions.
Answer:
D
Step-by-step explanation:
It pretty easy for college math:
15x^2 + 9x -4 /3x
15x^2 / 3x = 5x
9x / 3x = 3
-4 / 3x = the same thing