A cube has 8 vertices. For each pair of distinct vertices, we connect them up with a line segment. There are (8 2 )=28 such line segments. For each of these 28 line segments, we mark the midpoint. How many distinct points have been marked as the midpoints?
ABCD is a square where M and N are midpoints of AD and CD , respectively. If sinÚMBN=a b , where a and b are coprime positive integers, what is the value of a+b ?
critical t hinking
The reporter wrongly assumes that no politician has ever supported a bill intended to limit campaign contributions....He could have worked on the history of such bills and mentioned tht how many such bills were ever passed.
convert 25 liter into SI unit
One of the most effective forms of resistance that slaves employed against their masters was working slowly.
Essay on UNITED WE STAND, DIVIDED WE FALL