2. Find dw and then evaluate using the given information. frights to ageda er ni zi roniningo Ack w = 4x + 5yz2, x = 1, y = -1, z = 2, dx = 0.03, dy = 0.01, dz = -0.02 ( 25 2 ethi mi tons sidiasog mumnizam erdi stemixonggA mo 10 0 To ions sidizzog rummixer s idan s lo smulov ofT alsimonsflib gnieu yd ismismoo ed to smoldy sil to nonsluoles (.nilo emmet ni owens isnil ofli sunW) = Nyd navig af mebailvo asluguin 3. The manufacturing cost of a calculator is given by M(x, y) = 20x2 + 15y2 - 10xy + 40, where x is the cost of parts and y is the cost of labor. At the moment, the company spends $8 on parts and $12 on labor. Use differentials to approximate the change in cost if the company spends $8.25 on parts and $11.80 on labor. (asosin Ismiceb xhe of) vilsub only adt mumexonge of Tolaluolse moy sell (d)