- Grade 11 and 12 Mathematics (Moderator: geoffrey)
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Author Question: To solve a system Ax=b of m linear equations in n variables (n m): a.set m variables to 0 and solve ... (Read 201 times) |
- Grade 11 and 12 Mathematics (Moderator: geoffrey)
In 1864, the first barbiturate (barbituric acid) was synthesized.
A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.
In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
Everyone has one nostril that is larger than the other.