△abc is a right triangle with right angle at ∠b .

ab=42 cm
bc=34 cm

what is the measure of ∠a , to the nearest degree?
enter your answer in the box.

What kinds of numbers make up the set of numbers called the real numbers? give examples when you explain a number type. there are a limited set of types of numbers, but an unlimited number of examples of these numbers.

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial