9. `0.4=x%` find the value of `x`

Find the value of (x+4) (x+4)

Find the value of 2^(0.4) .

If |[4-x, 4+x, 4+x], [4+x, 4-x, 4+x],[4+x, 4+x, 4-x]| = 0 find the value of x.

The least count of a stop watch is 0.2 second. The time of 20 oscillations of a pendulum is measured to be 25 seconds. The maximum percentage error in this measurement is found to be 0.x%. What is the value of x?

Find the value of 0.4bar(23)

If 3^(4x)=(81)^(-1) and 10^(1/y)=0. 0001 , find the value of 2^(-x+4y)

Let a and p be the roots of equation x^2 + x - 3 = 0 . Find the value of the expression 4p^2 - a^3 .

If x- (1)/ (x ) = 4 , find the value of : x+ (1)/(x)

If lim_(x to 0) (x^(9) + a^(9))/(x + a) = 9 , find the value of a

Find the value of x if x^2+5x+6=0