Answers by Supun Kavinda
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Answers by Supun Kavinda

Answers by Supun Kavinda
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What does a plus over a minus sign mean? I'm a science student and am doing some data analysis for one of my reports. Am not great on maths and don't know what a plus sign with a minus sign under it means.
answered Oct 7, 2017
3 votes
158k views
Straw polls are___. A. scientifically based B. representative samples C. biased sampling D. cluster samples
answered Jun 18, 2017
1 vote
147k views
What is the pH scale used for? a. Measures hydroxide ion concentration (strength of the acid or base) b. Measures hydronium ion concentration (strength of the acid or base)
answered May 8, 2017
2 votes
69.4k views
If 1+4=5 and 2+5=12 and 3+6=18 what does 8+11=
answered Mar 1, 2017
4 votes
132k views
How does an author use artifacts in literature?
answered May 5, 2016
2 votes
132k views
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