The order or arrangement of items doesnt matter when you are determining the combination. true or false?

True.

If you have objects, the most common and important combinatorics elements you have are:

Here are some examples: if you start from the set , all the possible permutations are

All the possible dispositions, choosing the subset cardinality , are

So, as you can see, the order matters, because and are not the same element.

Finally, the combinations (still with ) are

Because now the order doesn't matter, and thus and are seen as the same element.

80 the answer is 80

step-by-step explanation:

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

step-by-step explanation:

formula

x = x1 + p/w(x2 - x1)

let the line segment ab with a(x1,y1) and b(x2,y2)

a point(x,y) divide ab in the ratio, 2: 3 the x coordinate can be written as

x = x1 + p/w(x2 - x1)

here p=2 and w = 2+3

therefore,

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

similarly y coordinate y = y1 + 2/5(y2 - y1)