FACTORISATION
i) Factorise:
4a(a-b)+3b(b-a)

Evaluate the dot product of (3,-1) and (1,5)

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score

Which expression is equal to (f+g)(x)?