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method: complete the squares for (x^2 - 2 x ) and ( y^2 + 14 y ) using the formula (b/2)^2 (where the general equation is a x^2 + b x) so that the equation becomes a x^2 + b x + (b/2)^2first, rearrange the o...

Note: sqrt means square root, and * means multiply method (overall aim is to make x the subject): multiply both sides by sqrt(5) to get: 15 * sqrt(x) = 6 * 5further expand the right hand side to get: 15 * sq...

Ligands causes d orbitals to split. Electrons get excited to higher energy levels from ground state. Visible light is absorbed to promote electron to a higher energy level and the light that is not absorbed ...

First let’s break this statement down. At the core of this sentence are two consecutive multiples of 5. How can we represent these using algebra? Let’s use 5a where “a” is an integer. A consecutive multiple ...

Beta cells store insulin in vesiclesAt normal blood glucose concentration (BGC), K+ channels are open, so K+ can diffuse out of the cell to maintain the potential difference (PD) at -70mVWhen the BGC rises, ...