Instead of recording the number 1.23cm of the radius of a...
Instead of recording the number 1.23cm of the radius of a tube, a student recorded 1.32cm. Find the percentage of error, correct to one decimal place.
6.8%
7.3%
9.6%
14.4%
15.4%
Correct answer is B
If y = 2x2 + 9x - 35. Find the range of values for which y < 0....
A solid hemisphere has a radius of 7 cm. Find the total surface area. ...
In the diagram, O is the centre, \(\bar{RT}\) is a diameter, < PQT = 33\(^o\) and <TOS = 76\(^...
By how much is the mean of 30, 56, 31, 55, 43 and 44 less than the median? ...