In practice the above definition of marginal cost as the change in total cost as a result of an increase in output of one unit is inconsistent with the differential definition of marginal cost for virtually all non-linear functions.f the cost function is differentiable joining, the marginal cost is the cost of the next unit produced referring to the basic volume.
Poker Face (Lady Gaga song) Poker Face is a song by American singer Lady Gaga from her debut studio album, The Fame (2008). It was released on September 26, 2008 as the album's second single. Poker Face is a synthpop song in the key of Gâ¯ minor, following in the footsteps of her previous single Just Dance, but with a darker musical tone.
) is a song recorded by British producer Mark Ronson, with vocals from American singer Bruno Mars, for Ronson's fourth studio album, Uptown Special (2015). RCA Records released the song as the album's lead single on 10 November 2014.