Debbie is borrowing 3 books from her friend who has a collection of 45 books. Which of the following expressions represents the
2 answers:
Answer: b.C(45, 3)
Step-by-step explanation:
Given: Debbie is borrowing 3 books from her friend who has a collection of 45 books.
Therefore, the number of ways Debbie can choose a group of 3 books will be equal to the number of combinations of selecting 3 books from 45 books.
i.e. The number of ways Debbie can choose a group of 3 books=
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Answer:
Option B
Step-by-step explanation:
Given the following question:
In order to find the answer, we need to convert the scientific notation into standard notation and then simplify by subtracting the decimals. Then we convert the standard notation back into scientific notation.
Your answer is "6.9951 × 10^-7" or option B.
Hope this helps.