The length of an exercise book is given as 20cm correct t...
The length of an exercise book is given as 20cm correct to the nearest centimeter. In which of the following ranges of possible measurement does the actual length lie?
19.5 - 20.4cm
19.1 - 20.9cm
19.9 - 20.1cm
19.95 - 20.05cm
19 - 21cm
Correct answer is A
In mathematics, numbers ranging from 0.5 - 0.9 are approximated to 1, while 0.1 - 0.4 are taken down to 0.
Find the number whose logarithm to base 10 is 2.6025 ...
If a rod 10cm in length was measured as 10.5cm, calculate the percentage error ...
Find the inter-quartile range of 1, 3, 4, 5, 8, 9, 10, 11, 12, 14, 16 ...
If the surface area of a sphere increased by 44%, find the percentage increase in diameter ...
Find the volume of a cone which has a base radius of 5 cm and slant height of 13 cm. ...
A car dealer bought a second-hand car for 250,000 and spent N 70,000 refurbishing it. He then s...
If a binary operation * is defined by x * y = x + 2y, find 2 * (3 * 4)...
Evaluate 2log39×log381−2log5625...
For what value of x is the tangent to the curve y = x2 - 4x + 3 parallel to the x-axis?...