(8) Pens are sold in 5 colors. In how many ways can 20 pens be purchased that include at least one of each color? (9) Fi

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answerhappygod
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(8) Pens are sold in 5 colors. In how many ways can 20 pens be purchased that include at least one of each color? (9) Fi

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8 Pens Are Sold In 5 Colors In How Many Ways Can 20 Pens Be Purchased That Include At Least One Of Each Color 9 Fi 1
8 Pens Are Sold In 5 Colors In How Many Ways Can 20 Pens Be Purchased That Include At Least One Of Each Color 9 Fi 1 (51.63 KiB) Viewed 63 times
question 8 and 9 please. Thank you!
(8) Pens are sold in 5 colors. In how many ways can 20 pens be purchased that include at least one of each color? (9) Find the coefficient of xy2 in the expansion of (x/2 + 2y)8. (10) (a) In how many ways can eight distinct T-shirts be distributed to four people? munu as can eight identical T-shirts be distributed to four
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