3. A firm’s total cost function is given by TC= 3X^2 + 2XY+7Y^2

Where X and Y denote the number of items of goods 1 and 2, respectively that are produced. Using the substitution method, find the values of X and Y which minimize costs if the firm is committed to producing 40 goods of either type in total.

answer: i'm great at algebra

~coco

step-by-step explanation:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

no because after the troops were pulled many blacks were killed by hangings lynchings and other cruel ways which in a way interrupted the reconstruction of the south and differed from the way abraham lincoln had an idea of reconstruction

30 feet

step-by-step explanation:

that would be 2 1/2 * 12

= 24 + 6

= 30 feet   (answer)