Aquad-core processor can handle 1 program on each of its 4 cores at the same time. if there are 20 programs queued to run on it, and each program can only be assigned to one core, how many different combinations of programs can be run at the same time*

4845 different combinations of programs

Explanation:

A combination is an arrangement where order is NOT important.

In this case, the number of different combinations of assignments of the programs is,

Hope this helps!

there is no universally accepted definition of art. although commonly used to describe something of beauty, or a skill which produces an aesthetic result, there is no clear line in principle between (say) a unique piece of handmade sculpture, and a mass-produced but visually attractive item. we might say that art requires thought - some kind of creative impulse - but this raises more questions: for example, how much thought is required? if someone flings paint at a canvas, hoping by this action to create a work of art, does the result automatically constitute art?