-8-6f-3f = -8-9f
:) hope I helped
C X=6
36\6= 6 that is why.
The total number of sides on a dice are 6.
The number of even numbers on a dice are 3 (2,4,6).
Since we have 3 even numbers and include the number 3, we have a total of 4/6. 4/6 simplifies to 2/3.
Your probability of rolling a 3 or even is 2/3.
Answer: (3x + 11y)^2
Demonstration:
The polynomial is a perfect square trinomial, because:
1) √ [9x^2] = 3x
2) √121y^2] = 11y
3) 66xy = 2 *(3x)(11y)
Then it is factored as a square binomial, being the factored expression:
[ 3x + 11y]^2
Now you can verify working backwar, i.e expanding the parenthesis.
Remember that the expansion of a square binomial is:
- square of the first term => (3x)^2 = 9x^2
- double product of first term times second term =>2 (3x)(11y) = 66xy
- square of the second term => (11y)^2 = 121y^2
=> [3x + 11y]^2 = 9x^2 + 66xy + 121y^2, which is the original polynomial.
