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What is the different between the preterite and imperfect tense?

Conjugation is not as common in English as it is in Spanish, especially in the past tense. Unlike English, there are two versions of the Spanish past tense called the Preterite and

Answered by Anna R. • Spanish tutor

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What is the double angle formula?

The double angle formula is how to combine/split trigonometric functions so that they can be integrated or simplified using identities. For example, cos (a+b)= cos(a)cos(b) - sin(a)sin(b) , which can be e...

Answered by Robert W. • Maths tutor

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Write equations for the reaction of propanoic acid with methanol and name any organic products.

This reaction is the formation of an ester because the reactants are a carboxylic acid and an alcohol.
Propanoic acid has 3 carbons and will have the functional group COOH:
CH₃CH_...

Answered by Bethan H. • Chemistry tutor

35074 Views

Simplify 125^(-2/3)

Simplify 125^-2/3
A negative indices means that we need to reciprocate the number or "flip it":
125^-2/3 = (1/125)^2/3
A fractional indices can be sp...

Answered by Bethan H. • Maths tutor

5104 Views

What is the difference between a causal and a sectional pressure group?

The difference between a causal and a sectional group is who joins them and why they join them.A causal group is a group dedicated to one cause; with members having a sha...

Answered by Alex G. • Politics tutor

22054 Views