<h2>
Answer:</h2>
The marginal cost when x=8 is:
375
<h2>
Step-by-step explanation:</h2>
We know that the marginal function for a cost function C(x) at x=a
is given by:
C'(x) at x=a
Here we have the cost function C(x) as:

Now we find the derivative of C(x) with respect to x.
i.e.

( Since,
)

Hence, we get:

Complementary angles
26
54
48
39
22
supplementary angles
54
48
2
135
91
The length of the hypotenuse = √(-3^2 +1^2) = √10
The point -3,1 tell us the length of y is 1 and the length of x is 3.
This would make opposite = 1 and adjacent = -3
Sinθ = opposite/hypotenuse = 1/√10 = √10/10
Cosθ = adjacent/hypotenuse = -3/√10 = - 3√10/10
Tanθ = opposite/adjacent = 1/-3 = -1/3
You circle the points on both sides and then you calculate them and get what you need...