A ball is dropped from h metres. After each bounce the ball reaches 60% of its previous height. After its third bounce it reaches a height of 0.648m. Find h.
3m
Factorise
(11x+10)(x-3)
Can a 15cm rod fit into cube ABCDEFGH?
Yes (AG length is 17.32cm)
Show that the expression is always a multiple of 4 for all positive integer values of n.
4(n+3)
AB is the diameter. O is the centre. Find angle ABC
20 degrees
A and B are similar. The volume of A is 200cm³. Find the volume of B.
3792.6cm³
Work out
128
The surface area of A is 500cm² The surface area of B is 2000cm² The length A is 6cm. Find the length of B
12cm
A car travels at 50mph, correct to 1 significant figure. It covers a distance of 300 miles, correct to 2 significant figures. Calculate the least possible time taken.
5 and 4/11 hours
Find angle ADC
94 degree
AB is the diameter. O is the centre. Find angle CAB
70 degrees
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