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  2. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    To calculate a percentage of a percentage, convert both percentages to fractions of 100, or to decimals, and multiply them. For example, 50% of 40% is: ⁠ 50 / 100 ⁠ × ⁠ 40 / 100 ⁠ = 0.50 × 0.40 = 0.20 = ⁠ 20 / 100 ⁠ = 20%. It is not correct to divide by 100 and use the percent sign at the same time; it would literally imply ...

  3. Fraction - Wikipedia

    en.wikipedia.org/wiki/Fraction

    To add fractions containing unlike quantities (e.g. quarters and thirds), it is necessary to convert all amounts to like quantities. It is easy to work out the chosen type of fraction to convert to; simply multiply together the two denominators (bottom number) of each fraction. In case of an integer number apply the invisible denominator 1.

  4. Circular error probable - Wikipedia

    en.wikipedia.org/wiki/Circular_error_probable

    We can then derive a conversion table to convert values expressed for one percentile level, to another. [ 5 ] [ 6 ] Said conversion table, giving the coefficients α {\displaystyle \alpha } to convert X {\displaystyle X} into Y = α .

  5. Grade (slope) - Wikipedia

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

    A larger number indicates higher or steeper degree of "tilt". Often slope is calculated as a ratio of "rise" to "run", or as a fraction ("rise over run") in which run is the horizontal distance (not the distance along the slope) and rise is the vertical distance.

  6. List of Jewish Nobel laureates - Wikipedia

    en.wikipedia.org/wiki/List_of_Jewish_Nobel_laureates

    "for their discovery of the course of the catalytic conversion of glycogen" [89] 1950 Tadeusz Reichstein [17] [18] [78] Switzerland / Poland "for their discoveries relating to the hormones of the adrenal cortex, their structure and biological effects" [90] 1952 Selman Waksman [17] [18] [78] United States / Russia / Ukraine

  7. Water–gas shift reaction - Wikipedia

    en.wikipedia.org/wiki/Water–gas_shift_reaction

    In the conversion of carbon dioxide to useful materials, the water–gas shift reaction is used to produce carbon monoxide from hydrogen and carbon dioxide. This is sometimes called the reverse water–gas shift reaction. [20] Water gas is defined as a fuel gas consisting mainly of carbon monoxide (CO) and hydrogen (H 2).

  8. Jews - Wikipedia

    en.wikipedia.org/wiki/Jews

    The growth of Yahweh-centric belief, along with a number of cultic practices, gradually gave rise to a distinct Israelite ethnic group, setting them apart from other Canaanites. [ 120 ] [ 121 ] [ 122 ] According to Dever , modern archaeologists have largely discarded the search for evidence of the biblical narrative surrounding the patriarchs ...

  9. Pendulum (mechanics) - Wikipedia

    en.wikipedia.org/wiki/Pendulum_(mechanics)

    A simple gravity pendulum [1] is an idealized mathematical model of a real pendulum. [2] [3] [4] It is a weight (or bob) on the end of a massless cord suspended from a pivot, without friction.