exam
Maths Puzzle
Numerical Ability
Simplify.
(2m to the 3rd power n)to the 4th power(3m to the 4th power n squared)squared
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exam Other Question
A chemist has 300 grams of 20% hydrochloric acid solution. He wishes to drain some off and replace it with an 80% solution so as to obtain a 25% solution. How many grams must be drain and replace it with 80% solution.
Hello,
I am having a hard time finding domains. For example:
f(x) = 1/x-2? This makes no sense to me. Please help.