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If we knew (x 2 + 6x) to be the first two terms of a perfect square expression, but not the constant term that would follow, we can work it out. We would use the fact that the expression can be factored as s...

Throughout the play, Mrs Birling is presented by Priestley as a character with few redeeming personality traits. She is firstly described as 'a rather cold woman' in the opening text. Priestley continued to ...

To answer explanation type questions, think through:Location: between Indian and Eurasian plates Processes: thrust (reverse) faulting, compressive stress , destructive/convergent plate boundary, continent-co...

AsH3 is a larger molecule than PH 3 as As is lower down the periodic table, so has a higher atomic number so more electrons. Therefore AsH 3 has more electrons than PH 3 meaning that the instantaneous dipole...

Intro - define referendums and democracy. context since 1975, e.g. the increased used of referendums to decide on matters which need the approval of the people (to avoid outrage, or to give govt. actions leg...