Last year ,linda opened an investment account with & 7800. at the end of the year ,the amount in the account had decreased by 28.5%. how much is thei decrease in dollares . how much money was in her account at the end of last year

  q

step-by-step explanation:

each line from a vertex to the midpoint of the opposite side is called a median. the point where the medians intersect, point q, is the centroid.

the centroid of δabc is point q.

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,