The mean age of a group of friends at the end of school is 17.5 years and the standard deviation is 0.4 years. they all meetagain at the school reunion after 10 years. what is the new mean and standard deviation of their ages?

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl

asdsad

step-by-step explanation: