Replace the question mark with suitable integer in the equation: 72 + (-5) - ? = 72

Add the following: 20 + (-72)

The solution of the inequation 4^(-x+0.5)-7.2^(-x) < 4,x in R is

Identify the charge on the bidy with a question mark.

The human heart beats 72 times per minute.

If the integers -15,12,-17,5,-1,-5,6 are marked on the number line then the integer on the extreme left is _____.

Factories the following : t^(2) + 72 - 17 t

Find the centroid of the the triangle whose vertices are . (2,-4),(-3,-7) and(7,2)

Find the centroid of the triangle whose vertices are (i) (2,-4), (-3,-7) and (7,2)