Question

1. The cost, in millions of dollars, to remove x % of pollution in a lake modeled by C=6000/200-2x
a. What is the cost to remove 75% of the pollutant? C=120

b. What is the cost to remove 90% of the pollutant? C=300

c. What is the cost to remove 99% of the pollutant? C=3000
d. For what value is this equation undefined?

Answer 1

I thought I helped you with these yesterday

Answer 2

Not this one!!

Answer 3

I've got 10% because that equals 0 ????

Answer 4

Need answer for d.

Answer 5

Yes, I helped you with this one

Answer 6

This question, Not answer for d.

Answer 7

x cannot equal 100, or else undefined

Answer 8

You're confusing me.....

Answer 9

That is what I need the answer for. For what value is the eqaution undefined?

Answer 10

a. x = 75
b x = 90
c. x = 99
d x cannot equal 100

Answer 11

It would be 100% x2 = 200-200 6000/0=0

Answer 12

you can't divide by zero

Answer 13

for an undifined equation, right???

Answer 14

To make it undefined?

Answer 15

that's what undefined means....

Answer 16

If you get zero in the denominator, it is undefined. If you don't get it, then I can't help you

Answer 17

That makes it 0

Answer 18

d. For what value is this equation undefined?
This is the question I am trying to answer, so would it be 100%?