if the mean of 100 students is 32.5 then find the value of x and y. marks 0-10,10-20,20-30,30-40,40-50,50-60 no. of students 5,15,20,x,20,y

answer: the is put the 450

step-by-step explanation:

df =

both have same length

you need to rotate this triangle about the origin 270 degrees clockwise to create the full square.

12r - 8 - 12

you have to combine like terms. below i have bolded the like terms:

12r - 8 - 12

together it combines to:

12r - 20

hope this !