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Solve the system of equations and choose the correct answer from the list of options. x + y = –3 y = 2x + 2 Select one: a. (5/3, 4/3) b. (-5/3, -4/3) c. (-3/5, -3/4) d. (3/4, 3/5)
asked
Mar 1, 2018
Mathematics
high-school
1
answer
5
votes
97.1k
views
The element hydrogen has one valence electron. which of the following elements also has only one valence electron? a. rubidium b. helium c. scandium d. krypton
asked
Mar 9, 2017
Chemistry
high-school
1
answer
1
vote
124k
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