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.
Answer:
y=8+1.5x+0.75z
Step-by-step explanation:
step one:
let us initialize the variables
let the cost of pizza be y
and let additional inch be x
also, let additional topping be z
step two:
we can model the cost of pizza as
y=8+1.5x+0.75z
therefore the expression for the cost of the pizza is given as
y=8+1.5x+0.75z
-3isqrt11!!! (The last answer!!)
Answer:
x+
Step-by-step explanation:
R greater than or equal to 7
