3 years ago

What is the formula for combinations

1 answer:

6 0

Note: , where nPr is the formula for permutations of n objects taken r at a time.Example:How many different committees of 4 students can be chosen from a group of 15?Answer:There are possible combinations of 4 students from a set of 15.There are 1365 different committees

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Im desperate to find the answer please give an explanation to how you got the answer

Olin [163]

Just draw the graphs, and you should find y = 10x² is the only graph narrower than the given one.

4 0

3 years ago

Read 2 more answers

find the area of the following shape. A(-5,-8) B(1,-8) C(3,-5) D(1,0) E(-5,-3) F(-3,-6). just show work

Juliette [100K]

Check the picture below

so hmmm, all you really have is 4 triangles and 1 rectangle, notice the bases and altitude of each triangle

so, get the area of each, sum them up, and that's the area of the shape