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For this question I would consider different methods for finding the roots of quadratics and remind the student that an exam could ask for a particular method to be used (as on one of the recent GCSE math...

Digestion is the process of breaking down the big molecules of food that we eat, into smaller molecules that the body can absorb and use. To help break down the food, we need enzymes, which the body produ...

(The full answer produced answer is annotated working out, but since this text box won't let me submit pictures, I'll do my best to transcribe)First, we gather the two fractions by using a common denomina...

The magnitude 7 earthquake that hit the LEDC central American country of Haiti on the 12th January 2010 is an event that one could argue highlights how the country is not sufficiently prepared for future ...

S: 900 700D: 2 m/sT: 960s
Need to find speed in seconds so convert 16 mins to seconds.
To find average, we must find time for the first part. Using...