Triangle abc is similar to triangle def, ac=9x, bc=8, df=18, and ef=x. which of the following represents the length of ac.

1) 36
2)16
3)8
4)4

Find the roots of the equation below. x^2 - 6 + 9 = 0

Question 5 of 10 2 points if a population is a sample of the population could be a. registered voters; all citizens o o b. baptists; all religious people o c. people who purchased shoes; all customers o d. the entire school faculty; math teachers

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?