Find the value of `(0.2)^-4`

Find the value of (0.99)^10 correct of 4 places of decimal.

Find the value of 2^(0.4) .

Find the value of 2^(1-4)

3.Find the value of (5^0 +4^-1) times 2^2

Find the value of : log_(0.2) 5

Find the value of 0.4bar(23)

If the roots of x^(2)-bx+c=0 be two consecutive integers, then find the value of b^(2)-4c .

The equation ax^2+4xy+y^2+ax+3y+2=0 represents a parabola. Find the value of a .

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

If (1+x+x^(2)+x^(3))^(7)=b_(0)+b_(1)x+b^(2)x^(2)+….b_(21)x^(21) , then find the value of b_(0)+b_(2)+b_(4)+……+b_(20)