exam
Maths Puzzle
Numerical Ability
The lenght of a rectangular yard is 25ft more than its width. If the width were doubled, the area of the yard would be 1800ft2. Find the dimensions of the yard.
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Im not sure what category this goes under. but i would like to know how to answer these types of problems including:
cuberoot 5/16
cuberoot 4/17
things like that
Fund the domain of the function:
f(x)=square root of 81-x squared