The total cost in dollars, to order units of a certain product is modeled by C (2) = 5x^2 + 320. According to the model for what size order is the cost per unit a minimum? An order of 1 unit has a minimum cost per unit

An order of 8 units has a minimum cost per unit.

An order of 80 units has a minimum cost per unit

An order of 320 units has a minimum cost per unit

the answer is ! ?

yx = 36

step-by-step explanation:

cos f = opposite side/ hypotenuse

cos f = yw / yx

we know cos f = 4/9 and yw =16

4/9 = 16/yx

multiply each side by yx

4/9 yx = 16/ yx * yx

4/9 yx = 16

multiply each side by 9/4

9/4 * 4/9 yx = 16 *9/4

yx = 36

answer: the correct option is d.

explanation:

it is given that the triangle j'k'l' shown on the grid below is a dilation of triangle jkl using the origin as the center of dilation.

from the given graph it is noticed that k(4,8) and k'(2,4). let origin is defined by o and scale factor is defined by k, then

    (1)

distance formula,

put these values in equation (1).

therefore scale factor is     and option d is correct.