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Quizlet made its first acquisition in March 2021, with the purchase of Slader, which offered detailed explanations of textbook concepts and practice problems, and eventually incorporated it into its paid platform, Quizlet Plus. [23] [24] [25] In November 2022, Quizlet announced a new CEO, Lex Bayer, the former CEO of Starship Technologies. [26]
Linear programming (LP), also called linear optimization, is a method to achieve the best outcome (such as maximum profit or lowest cost) in a mathematical model whose requirements and objective are represented by linear relationships.
Big Science is the debut studio album by American performance artist and musician Laurie Anderson. It was the first of a seven-album deal Anderson signed with Warner Bros. Records . The album consists of a selection of musical highlights from her eight-hour production United States Live , which was itself released as a 5-LP box set and book in ...
Overall score: 1st—15, 2nd—12, 3rd—10, 4th—8, 5th—6, and 6th—4. In addition, the school with the top scorer in a subsection receives 3 points. A school can earn multiple subsection points even if the same student is the top scorer in two, or all three, of the subsections.
Birth control, also known as contraception, anticonception, and fertility control, is the use of methods or devices to prevent pregnancy. [1] [2] Birth control has been used since ancient times, but effective and safe methods of birth control only became available in the 20th century. [3]
The National Institutes of Health (NIH) is the primary agency of the United States government responsible for biomedical and public health research. It was founded in 1887 and is part of the United States Department of Health and Human Services.
A key point of contention between the SEC and the crypto industry lies in defining what constitutes a security. The SEC applies the Howey Test, derived from a 1946 U.S. Supreme Court decision, which defines a security as "an investment of money in a common enterprise with profits to come solely from the efforts of others."
Life expectancy fell again in 2021 to 76.4 years, which has been attributed to COVID-19 and rising death rates from suicide, drug overdoses and liver disease. [85] As of 2023, U.S. life expectancy has increased slightly following the COVID-19 pandemic, but still trails behind peer and rival countries including Canada, China and Germany. [86]