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A European high-speed passenger train is made up of two first-class passenger cars, five second-class cars, and a restaurant car. How many ways can the train be made up?
asked
Feb 18, 2020
Mathematics
high-school
1
answer
3
votes
90.4k
views
-8x^2- [8x - 6x^2 - 8x)] - [7 + (-8x - 7)]
asked
Feb 14, 2020
Mathematics
middle-school
1
answer
5
votes
106k
views
Is -33 irrational or rational?
asked
Mar 25, 2019
Mathematics
middle-school
1
answer
1
vote
16.6k
views
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