Square root of 81?
9X9 = 81
LH
Related Maths GCSE answers
All answers ▸What's the quadratic formula used for?
i) Make y the subject of the expression x = ((a-y)/b))^1/2 ii) Simplify fully (2x^2 − 8)/(4x^2 − 8x)
How is trigonometry used on non-right angled triangles?
A game consists of 5 cups turned upside down, under one of the cups is a prize. 5 friend's pick a cup in turn and lifts it up, if they get the prize, they win , but if not, the cup is removed and the next friend picks. What position is it best to pick?