Mathematics

Nugget

11 August, 18:27

Two dams, when opened, release water at different rates. The following functions represent the amounts of water the dams release over t minutes:

Dam A f (t) = 5t - 7t - 1

Dam B g (t) = 3t 2 + 4t + 9

Which function represents the difference in the amounts of water released, h (t) = f (t) - g (t) ?

Options:

h (t) = 3t 2 - 5t + 11t + 10

h (t) = 2t 2 - 11t - 10

h (t) = 5t - 3t 2 - 3t + 8

h (t) = 5t - 3t 2 - 11t - 10