Triangle ABC has a right angle at B. If sin A = 2/7 then cot A is

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Aregular pan has a length that is 4/3 the width. the total area of the pan is 432in.2. what is the width of the cake pan?

Factor the polynomial. b^2 + 4b + 4