You wanna cross out numbers if they can both divide by the same number. then multiply the numbers in the same row together
What is the slope of points (4,9) (-8,-6)?
2 answers:
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Answer:
Step-by-step explanation:
Given : Number of choices for novels = 4
Number of choices for plays = 6
Number of choices for poetry books = 5
Number of choices for nonfiction books = 5
Total books =4+6+5+5=20
If he wants to include all 4 novels, then the number of books left to select = 9-4=5
Remaining choices for books = 20-4=16
Number of combinations of n things taking r at a time :
Then, the number of different reading schedules are possible :_
Hence, the required answer is .