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During stage 2 of the DTM, death rates started to fall due to advancements in healthcare. Vaccinations had been discovered and so programmes were introduced to inoculate babies against diseases such as sm...

Begin by expansion (√a x √b = √ab): √3 x √30 = √90 and √3 x √8 = √24. Therfore we have: √90 + √24. Simplify roots (√a^2√b). The question tells us we need x√10 so therefore √90 = √9√10 (9x10 = 90) and we n...

When sodium reacts with chlorine, the sodium atom transfers 1 electron to the chlorine atom, in order to achieve a stable electron configuration resembling a noble gas. The sodium (Na) atom becomes a sodi...

Rearrange the equation of the line perpendicular to PQ to give y = -(3/2)x + 7/2. Gradient of this line = -3/2Using the knowledge that the gradients of a line perpendicular to another line is related by a...

Use of context is a very common thing to find tricky when responding to an essay question. It can often feel like you're "tagging on" extra information just for the sake of hitting all of the As...