If X || Y and Y || Z, then ___. •X || Z.
•A upside down T Z
•X upside down T A
•A || B

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?

If f(x) = 6x – 4, what is f(x) when x = 8? a2 b16 c44 d52

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.