2. The output of a certain plant is Q(x, y) = 0.19x2 + 0.12.y + 0.02y?
units per day, where x is the number of hours of skilled labor used y is the number
of unskilled workers used. Currently 100 hours of skilled labor and 300 hours of un-
skilled labor are used each day. Estimate the change in unskilled labor that should
be made to offset a 1-hour increase in skilled labor so that the output remains the
same as before.

among other factors, composers started writing dynamic markings in their scores because "new instruments allowed for more dynamic ranges and contrast."

dynamics allude to the loudness or softness of music. dynamics offer an approach to demonstrate articulation in sheet music. they to drive the enthusiastic substance of music through volume and force. maybe you could alter both the volume and the shading profundity on your screen at the same time. we can likewise think about the force side of elements as the quality of a note. a few notes are intended to be played delicately and gently, while others are intended to be played all the more firmly.  

some dynamics markings have a letter 'm,' which remains for mezzo, signifying 'medium.' so a mezzo piano unique stamping resembles this (mp) and intends to play medium calm, while a mezzo specialty dynamic resembles this (mf) and intends to play medium loud.

the correct answer is:     [c]:     " cyclical unemployment " .