Answer:
-19.35
Step-by-step explanation:
Steps
7.45−24.45+74.17−76.52
−17+74.17−76.52
57.17−76.52
-19.35
Answer:
7.4 x 10^7
Step-by-step explanation:
3.98 x 10^8 - 3.24 x 10^8 = 0.74 x 10^8 (not scientific notation, because it isn't full number)
0.74 x 10^8 ---> 7.4 x 10^7
- got seven by counting the spaces it moved over (right decrease, while left increases)
Answer:
144 ways
Step-by-step explanation:
Let's think of the 3 persons sitting together as "one". So essentially we have 3 + "1" = "4" persons to arrange.
THey can be arranged in 4! ways, which is:
4! = 4 * 3 * 2 * 1 = 24 ways
Now, the 3 persons themselves can be arranged in 3! ways, which is:
3! = 3 * 2 * 1 = 6 ways
Total ways = 4! * 3! = 24 * 6 = 144 ways
1=650,000
2=270,000
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Redstar215
20,000 would be the answer
