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Speed = Distance / TimeTime = Distance / SpeedTime = 29 / 13 = 2.2307 = 2.2 seconds (2 s.f)

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...

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_...

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...

formula for volume of solid generated = 2pi x integral between limits of y²expand ( e^x + 2e^-x)²= e^2x+4+4e^-2xintegrate e^2x+4+4e<...