Average? find out value of X?

Find out the value of 'X' :

, Find out the value of 'X'

The average of x, y and z is 45. x is as much more than the average as y is less than the average. Find the value of z.

find out the value ofsin 765

Find out X:

if cos A=x then find out the value of sin A in terms of x

if x=2^((1)/(3))+2^(-(1)/(3)) then find out the value of 2x^(3)

The demand function of a commodity x is given by Q_(X) = 20 - 3P_(X) . Find out the values of P_(X) , when corresponding values of Q_(X) are given as : 5, 8, 11 and 14.

if f is continuous at x-0then find out the values of a.b.c and d