F(g(x)) = [(-7x-8)/(x-1) - 8} / [(-7x - 8)/(x-1) + 7] =
[(-7x - 8 - 8(x-1)) / (x-1)] / [(-7x - 8 + 7(x-1)) / (x-1)] = (-15x) / (-15) = x.
g(f(x)) = [-7*(x-8)/(x+7) - 8] / [(x-8)/(x+7) - 1] =
[(-7x + 56 -8*(x+7)) / (x+7)] / [(x - 8 - (x + 7)) / (x+7)] = (-15x) / (-15) = x.
So since f(g(x)) = g(f(x)) = x we can conclude that f and g are inverses.
Answer:
34
Step-by-step explanation:
your weight become one sixth in the moon
Answer: The probability is 3 out of 20
Step-by-step explanation:
60 miles would be the total miles in the trip
Step-by-step explanation:
If 200 g fertiliser required for 8 m^2 then for 1m^2 we'd need 25 g of fertiliser
(i) 14×25 = 350 g fertiliser would be needed for 14 m^2 land
(ii) 450÷25 = 18 m^2 land could be fertilised with 450 g fertiliser
