Show Combinations Calculator Factorials, Permutation, And Combinations !! Help?

Factorials, permutation, and combinations !! help? - show combinations calculator

1) A look at the car door has five keys on the keyboard. Each button has two digits.
How many different models of the five keys possible (Hint: You can press more than once)

1 / 2 3 / 4 5 / 6 7 / 8 9 / 10

2) Each line on the screen a graphing calculator mode shows two or more options. In many ways you can determine how the computers?

(For this question you need a graphing calculator, and you must find the MODE button on them to solve this problem)



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