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Welcome to the Wikipedia Mathematics Reference Desk Archives; The page you are currently viewing is a monthly archive index. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages.
A Regents exam was taken at the end of the 1 + 1 ⁄ 2-year course. The Math B Regents was often considered one of the most difficult New York State Regents. Math B covered concepts that can be found in trigonometry and advanced algebra, and prepared students for pre-calculus and calculus and reviewed past topics.
Most Regents exams consist of a single three-hour testing period. The exception is the Earth Science exam, which consists of a 41-minute (approximate) laboratory component, known as the Earth Science lab practical, given around two weeks prior to the three-hour exam. The Regents exams are administered in January, June, and August.
A bomb in Afghanistan kills four American soldiers, making 2009 the deadliest year for foreign troops since the 2001 invasion. A gas explosion at a coal mine in Shanxi, China, kills at least 14 people. (China Daily) The United States budget deficit for 2009 will reach $1.6 trillion, the highest ever recorded.
In the biological sciences, Bronx Science offers a special honors biology course, in addition to the Regents-level course, which includes additional laboratory exposure and intensive content. If students have already taken the Living Environment regents in 8th grade, they may take Regents-level or honors chemistry in freshman year.
In analytic geometry, the intersection of a line and a plane in three-dimensional space can be the empty set, a point, or a line. It is the entire line if that line is embedded in the plane, and is the empty set if the line is parallel to the plane but outside it.
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