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3x + 2y = 4 (equation 1) 4x + 5y = 17 (equation 2) Multiply equation 1 by 2.5, giving 7.5x + 5y = 10 (equation 1) 4x + 5y = 17 (equation 2) Subtract equation 2 from equation 1, giving 3.5x = -7 Therefore,...

Student should calculate the moments about the pivot point (from diagram recognise this is the centre of the see-saw) for each child. Using the equation, moment = mass x acceleration x distance from pivot...

(x+1)(x-1)

The sonnet form has been changed and adapted over the years, however there are two main structures that poets use when writing sonnets.

A Petrarchan sonnet has 14 lines and is structured as an octa...

There are two key ways by which enzymes can be inhibited. Competitive inhibition - this involves a molecule other than the substrate binding to the active site of the enzyme (the location where the substr...