Daily Practice - Higher

Write √98 in the form a √b, where b is as small as possible.Write sqrt(98) in the form a sqrt(b), where b is as small as possible.

4 teas and 2 cakes cost £12.00. 2 teas and 2 cakes cost £7.40. Find the price of a tea.

y is directly proportional to x². When x = 5, y = 100. Work out y when x = 3.y is directly proportional to x^2. When x = 5, y = 100. Work out y when x = 3.

A right-angled triangle has a hypotenuse of 11 cm and an angle of 38°. Work out the side opposite that angle, to 1 decimal place.

4 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.