Question

The cost (in dollars) of producing x units of a product is given by C=3.6√x +500 find the additional cost when the production increases from 9 to 10 units

Answer 1

First evaluate the function at x=9

Then evaluate the function at x=10

Finally subtract the value you get at x=9 from the value you get at x=10

Answer 2

yes it is

Answer 3

don't leave me yet. there's two more parts to it and im not sure if i will understand them

Answer 4

C(10)-C(9), you should get: 0.584

Answer 5

okay

Answer 6

find the marginal cost when x=9
that means take the derivative of C then put in 9 right?

Answer 7

oh man you are smart

Answer 8

that is exactly what it means

Answer 9

what is your answer, i will verify

Answer 10

16.2

Answer 11

oh

Answer 12

We are waiting, I got something that I want verification. However I am thinking that the cost must of been in thousand of dollars.

Answer 13

I got .6 ??

Answer 14

The derivative of the Cost function you are given is: 1.8/sqrt(x)

Answer 15

When you plug in 9 should get: 0.60

Answer 16

i forgot to add the exponent on my x.

Answer 17

next question

Answer 18

the next part just wants me to compare them. so that part i know i can do :)

Answer 19

okay