What is the circumference of latitude 0o o S if R is the radius of the earth?

A room is 12m long, 9m wide and 8m high. Find the cosine of the angle which a diagonal of the room makes with the floor of the room

Find all median of the numbers 89, 141, 130, 161, 120, 131, 131, 100, 108 and 119

Find all real number x which satisfy the inequality 13 1 3 (x + 1) - 1 > 15 1 5 (x + 4)

Factorise (4a + 3) 2 2 - (3a - 2)2

Four boys and ten girls can cut a field first in 5 hours. If the boys work at 54 5 4 the rate at which the girls work, how many boys will be needed to cut th...

Reach each number to two significant figures and then evaluate 0.02174×1.20470.023789

Evaluate (212)3 3 - (121)3 3 + (222)3

The goals scored by 40 football teams from three league divisions are recorded below No of goals 0 1 2 3 4 5 6 Frequency 4 3 15 16 1 0 1 What is the total nu...