What are the questions attach a pic plz
72.5 as decimal or 72 1/2 as fraction
Answer:the mean is 90
Step-by-step
you find the sum of the values then divide them by the amount of numbers in the set
Y - x = 154
let z = xy = x(154 + x) = x^2 + 154x
we need to find the minimum value of z
z' = 2x + 154 which = zero for minm or maxm value
x = -77 and y = 154 -77 = 77
so the 2 numbers are -77 and 77
