Answer:
the photo isnt clear enough
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
The second proportion is correct and it will be 6 hours.
Answer:
X = 4
Step-by-step explanation:
-2 times any positive is a negative
X also can't be a negative
so -2 times 4 = -8
