Find the value of `8-:0.5`

The mean of 7,5,8,p and 11 is 8. Find the value of p.

If y+ (2p + 1) x + 3=0 and 8y- (2p-1)x=5 are mutually perpendicular, find the value of p.

Find the value of (2^0+8^0)/6^0

Find the value of 3x^2-5x+8 for x=3

Find the value of : log_(0.2) 5

Find the value of : log _5 0.2

Find the value of: -7-8-(-25)

If 2((1,3),(0,x))+((y,0),(1,2))=((5,6),(1,8)) , then find the value of x+y.

If the distance between the points (1,-8,a) and (-3,-5,4) is 5 units then find the value of 'a'.

The measure of angles of a hexagon are x^0,\ (x-5)^0,\ (x-5)^0,\ (2x-5)^0,\ (2x-5)^0,\ (2x+20)^0dot Find the value of xdot