exam
Maths Puzzle
Numerical Ability
How many gallons of a 20% ammonia solution must be mixed with a 5% ammonia solution to create 20 gallons of 11% ammonia solution?
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exam Other Question
Given f(x) = -xTO THE POWER OF 3 - 3x TO THE POWER OF 2 - x + 5, find f(-2), f(0), and f(2)
Given f(x) = xTO THE POWER OF 2 - x + 2, find f(0).
could some one check for me please?
b^2-ab-6a^2
=(b+6a)(b-a)