Answers by A Machan
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Answers by A Machan

Answers by A Machan
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Which equations support the fact that rational numbers are closed under addition? Select each correct answer. A 13+13=23 B 9√+9√=29√ C 6√+(−6√)=0 D 2√+2√=22√
answered Apr 20, 2018
3 votes
63.9k views
What is the desertification of the Sahara? 1.) The expansion of the Sahara desert. 2.) The study of the Sahara desert. 3.) The shrinking of the Sahara desert. 4.) The population of the Sahara desert.
answered Jan 31, 2018
5 votes
17.4k views
By which percentage do nonsmokers who are exposed to secondhand smoke at home or at work increase their risk of developing heart disease? 10 to 15 20 to 25 25 to 30 45 to 50
answered Oct 30, 2017
2 votes
110k views
2. Describe, in complete sentences, the relationship between the predator and prey populations in the activity. How does a change in each population affect the other?
answered Feb 12, 2017
6 votes
176k views
What normally prevents the membranes of the alveoli from sticking together during expiration?
answered Nov 26, 2016
4 votes
5.2k views
Write "P (x) = -36x^2 + 900x - 1584" in standard vertex form, help please!
answered Sep 17, 2015
5 votes
114k views
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