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Factorise 45p² -125q²
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Solve |x| > -9 a) {x|x< -9 or x> 9} b) all reals c) no solution
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Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !
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1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?
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Factorise 45p² -125q²...
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