Acompany determined that the marginal cost c'x) of producing the xth unit of a product is given by c'(x)=x - 4x. find the total cost function c, assuming that cx) is in dollars and that fixed costs are 53000
c(x)=d

the answer is c. 23/3

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm

graph b

step-by-step explanation:

one solution- graph a (clear intercepting point.)

no solution- graph b (they're parallel, there will never be a point of interception.)

infinite solutions- graph c (all points intercept.)