One side of a rectangle is 8cm and the diagonal is 10cm. What is the area of the rectangle?

Convert the decimal number 89 to a binary number

Find the 9th term of the arithmetic progression 18, 12, 6, 0, -6 .........

Simplify: \((2\frac{1}{6} - 1\frac{2}{3}) \div 2\frac{2}{3}\).

Expand (2x - 5)(x - 3)

Simplify 56x\(^{-4}\) \(\div\) 14x\(^{-8}\)

Simplufy Log104 + Log1025

A boy measured the length and breath of a rectangular lawn as 59.6m and 40.3m respectively instead of 60m and 40m. What is the percentage error in his calcul...

The 6th term of a G.P is -2 and its first term is 18. What is the common ratio?