Answer:
Yes
Step-by-step explanation:
A dollar = 100 cents
1 cent : 100 cents
= 1/100
= 0.01
3x^2=375
x^2=125
x=11.18
c or d, they say the same thing
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:
The second one
Step-by-step explanation:
Becaue you have to combine like terms
Subtract 4 from both sides, y = 5
