exam Maths Puzzle Numerical Ability


C= 6000
_______
200 - 2x

The cost, in millions of dollars, to remove x% of pollution in a lake modeled by the formula above.
What is the cost to remove 75% of the pollutant?

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exam Other Question
Hello
Please solve . Given the functions f(x) =5x + 17 and g(x)= 6x^2 -7x-3 find (f/g)(x) and the domain of f/g.

Sorry about the mixup.

Thanking you f(x)=√x-1

^^ its f(x)= [square root] x-1

THANK YOU!