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What exactly IS differentiation?

This is a common question as we are often taught to differentiate by simply being told how to do the calculation, but not what it is we're really doing. The concept Differentiation is finding the gradient of...
JH
Answered by John H. • Maths tutor
8672 Views

There are 20 balls in a bag. The probability is 0.25 of picking a red ball. If one more red ball is added, what is the new probability of picking a red ball at random?

Convert 0.25 into a fraction where 20 is the denominator as there are 20 balls in total in the bag. 0.25 is the same as 1/4 and to convert this to 20 as the denominator multiply both the top and the bottom b...
AL
Answered by Alex L. • Maths tutor
12342 Views

Comment on the theme of revenge in Shakespeare’s Hamlet

Revenge tragedies were popular in Elizabethan theatre for their violent action and on-stage spectacle of bloody justice. Hamlet uses a medieval Danish revenge story as a framework to comment on the internal ...
KM
15556 Views

How do I know if verbs take "avoir" or "être"?

The difference between avoir and être is a grammatical distinction that often confuses students, but is absolutely necessary to know when forming the perfect tense, as well as other more complex tenses such ...
EB
Answered by Eleanor B. • French tutor
15272 Views

Describe the 3 types of isomers?

Definition : Isomerism is when 2 molecules have the same molecular structure but a different structural arrangement (structural isomerism) or a different arrangement in space (stereoisomerism). Structural is...
JC
Answered by Julia C. • Chemistry tutor
33185 Views