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Answers by Enfix

Answers by Enfix
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One radioactive isotope of calcium has an atomic mass number of 47. How many neutrons are in the calcium-47 nucleus?
answered Nov 26, 2018
5 votes
161k views
What were the main economic activities in West Africa?
answered Aug 12, 2018
5 votes
52.3k views
Which operations is the following set closed under: {2, 4, 6, ...}? The answer has to be written out and there are no choices
answered Jul 29, 2018
4 votes
209k views
In what stage do children see the world in an egocentric way? A)sensorimotor B)preoperational C)concrete operations D)formal operations
answered Apr 28, 2018
3 votes
74.9k views
What are the explicit equation and domain for an arithmetic sequence with a first term of 7 and a second term of 3? A. an = 7 − 4(n − 1); all integers where n ≥ 1 B. an = 7 − 4(n − 1); all integers where
answered Jan 23, 2018
4 votes
207k views
How long does it take alcohol to get out of your system?
answered Aug 25, 2017
1 vote
143k views
The force of gravity that earth exerts on objects in our solar system causes:
answered Jul 19, 2017
6 votes
122k views
True or false Assuming that audience members already agree with a disputed position best reflects the straw-man fallacy.
answered Feb 1, 2017
3 votes
71.2k views
What is the tenth term of the geometric sequence that has a common ratio of 1/3 and 36 as its fifth term? a. 4/7 b. 27/4 c. 4/81 d. 1/36
answered Feb 8, 2016
0 votes
208k views
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