exam
Maths Puzzle
Numerical Ability
Determine the domain and range of the relation
{(-1,4), (1,7),(-5,3),(9,8),(11,-7)}
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exam Other Question
the length of an rectangle is fixed at 20 cm. what widths will make the perimiter greater than 86 cm?
6x+2y=7
y=2-3x
solve by substitution or another method