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  2. Grade (slope) - Wikipedia

    en.wikipedia.org/wiki/Grade_(slope)

    The Guinness World Record once again lists Baldwin Street as the steepest street in the world, with a 34.8% grade (1 in 2.87) after a successful appeal [10] against the ruling that handed the title, briefly, to Ffordd Pen Llech. A number of streets elsewhere have steeper grades than those listed in the Guinness Book.

  3. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    A pie chart showing the percentage by web browser visiting Wikimedia sites (April 2009 to 2012). In mathematics, a percentage (from Latin per centum 'by a hundred') is a number or ratio expressed as a fraction of 100.

  4. Parkway Christian School - Wikipedia

    en.wikipedia.org/wiki/Parkway_Christian_School

    As with most private schools, tuition at Parkway Christian varies based on the number of children a family has enrolled and their grade level, with the highest tuition for a single child during the 2022–2023 school year being $8,925 without fees, and the lowest being $3,675.

  5. Weapons-grade nuclear material - Wikipedia

    en.wikipedia.org/wiki/Weapons-grade_nuclear_material

    Natural uranium is made weapons-grade through isotopic enrichment. Initially only about 0.7% of it is fissile U-235, with the rest being almost entirely uranium-238 (U-238). They are separated by their differing masses. Highly enriched uranium is considered weapons-grade when it has been enriched to about 90% U-235. [citation needed]

  6. Benjamin O. Davis High School - Wikipedia

    en.wikipedia.org/wiki/Benjamin_O._Davis_High_School

    For the 2018–2019 school year, Davis High School received a C grade from the Texas Education Agency, with an overall score of 77 out of 100. The school received a C grade in two domains, Student Achievement (score of 71) and Closing the Gaps (score of 71), and a B grade in School Progress (score of 80) The school did not receive any of the ...

  7. Tool steel - Wikipedia

    en.wikipedia.org/wiki/Tool_steel

    The first air-hardening-grade tool steel was mushet steel, which was known as air-hardening steel at the time. Modern air-hardening steels are characterized by low distortion during heat treatment because of their high-chromium content.

  8. Global Internet usage - Wikipedia

    en.wikipedia.org/wiki/Global_Internet_usage

    Number of Internet users in 2011 This map illustrates the total number of Internet users in a country as well as the percentage of the population that had Internet access in 2011. Source: Information Geographies at the Oxford Internet Institute . [ 11 ]

  9. Titanium alloys - Wikipedia

    en.wikipedia.org/wiki/Titanium_alloys

    is identical to Grade 7 (Grade 7 with 58 ksi minimum UTS). Grade 9 contains 3.0% aluminium and 2.5% vanadium. This grade is a compromise between the ease of welding and manufacturing of the "pure" grades and the high strength of Grade 5. It is commonly used in aircraft tubing for hydraulics and in athletic equipment. Grade 11