Daily Practice - Higher

Write √32 in the form a √b, where b is as small as possible.Write sqrt(32) in the form a sqrt(b), where b is as small as possible.

For the curve y = x² + 6x - 1, work out y when x = 0.For the curve y = x^2 + 6x - 1, work out y when x = 0.

y is directly proportional to x². When x = 5, y = 175. Work out y when x = 4.y is directly proportional to x^2. When x = 5, y = 175. Work out y when x = 4.

A sector of a circle has radius 9 cm and angle 45°. Work out its area, to 1 decimal place.

31 students study Spanish and 11 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.