Is it suppose to be 4x+3=1? if so x would be -1/2. so the answer should be 6.
Find the square root of 49, which would give you the dimensions of the square.
The square root of 49 is 7.
To find the perimeter: (square has four sides)
7+7+7+7= 28
Therefore the perimeter is 28 inches :)
Experimental probability = number of positive results / number of experiments
Experimental probability = 67 / 450
4x^2-16x+12 is the answer.
