Daily Practice - Higher

Write √48 in the form a √b, where b is as small as possible.Write sqrt(48) in the form a sqrt(b), where b is as small as possible.

For the curve y = x² + 2x + 12, work out y when x = 0.For the curve y = x^2 + 2x + 12, work out y when x = 0.

A block has volume 30 cm³ and density 3 g/cm³. Work out its mass.A block has volume 30 cm^3 and density 3 g/cm^3. Work out its mass.

A sector of a circle has radius 15 cm and angle 180°. Work out its area, to 1 decimal place.

14 students study Spanish and 6 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.