<h3>
Answer: perimeter = 10+2x+xy</h3>
To get the perimeter, you add up all the outer sides
side1+side2+side3 = (5+x)+(5+x)+(xy) = 10+2x+xy
The like terms 5 and 5 add to 10. The other pair of like terms x and x add to 2x. There isn't anything to pair with xy, so we leave it as is.
Answer:
x = 21.3 repeating. so put the - on top of the 3 if you're writing it down
The ratio is 9:81 which is equivalent to 1:9
Answer:
Are you sure it ia not x2 - x1 in the denominator?