SOLUTION: How many website graphics can be created by using at least seven of nine different bitmap images?

Question 1169590: How many website graphics can be created by using at least seven of nine different bitmap images?
Found 2 solutions by MathLover1, ikleyn:
Answer by MathLover1(20855) (Show Source): You can put this solution on YOUR website!

use combination formula:
where and

...simplify

website graphics can be created by using at least seven of nine different bitmap images

Answer by ikleyn(53765) (Show Source): You can put this solution on YOUR website!
.

At least seven means 7, 8 and 9. So, "How many website graphics can be created" = + + = = 36 + 9 + 1 = 46. ANSWER

Solved.

Do not accept any other answer.

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