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  2. Academic grading in the United States - Wikipedia

    en.wikipedia.org/wiki/Academic_grading_in_the...

    The top grade, A, is given here for performance that exceeds the mean by more than 1.5 standard deviations, a B for performance between 0.5 and 1.5 standard deviations above the mean, and so on. [17] Regardless of the absolute performance of the students, the best score in the group receives a top grade and the worst score receives a failing grade.

  3. HAZMAT Class 1 Explosives - Wikipedia

    en.wikipedia.org/wiki/HAZMAT_Class_1_Explosives

    5: Division 1.4S fireworks may not be loaded on the same transport vehicle with Division 1.1 or 1.2 materials. Except as provided in the following paragraph, explosives of the same compatibility group but of different divisions may be transported together provided that the whole shipment is transported as though its entire contents were of the ...

  4. Slide rule - Wikipedia

    en.wikipedia.org/wiki/Slide_rule

    The 2 on the top scale is placed over the 5.5 on the bottom scale. The resulting quotient, 2.75 , can then be read below the top scale's 1 : There is more than one method for doing division, and the method presented here has the advantage that the final result cannot be off-scale, because one has a choice of using the 1 at either end.

  5. Rational number - Wikipedia

    en.wikipedia.org/wiki/Rational_number

    In mathematics, "rational" is often used as a noun abbreviating "rational number". The adjective rational sometimes means that the coefficients are rational numbers. For example, a rational point is a point with rational coordinates (i.e., a point whose coordinates are rational numbers); a rational matrix is a matrix of rational numbers; a rational polynomial may be a polynomial with rational ...

  6. Windows Calculator - Wikipedia

    en.wikipedia.org/wiki/Windows_Calculator

    A simple arithmetic calculator was first included with Windows 1.0. [6]In Windows 3.0, a scientific mode was added, which included exponents and roots, logarithms, factorial-based functions, trigonometry (supports radian, degree and gradians angles), base conversions (2, 8, 10, 16), logic operations, statistical functions such as single variable statistics and linear regression.

  7. Badges of the United States Army - Wikipedia

    en.wikipedia.org/wiki/Badges_of_the_United...

    One badge from either group 1 or group 2 may be worn with badges from groups 3 and 4 above the ribbons, so long as the total number of badges above the ribbons does not exceed three. Only three badges (from groups 3, 4, or 5) can be worn on the dress uniform pocket flap at one time. This total does not include special skill tab metal replicas.

  8. Lyft stock soars as rides reach all-time high, earnings top ...

    www.aol.com/finance/lyft-stock-soars-rides-reach...

    Lyft’s adjusted earnings per share of $0.29 were ahead of the $0.20 forecast, while quarterly revenue of $1.5 billion beat Wall Street’s estimate of $1.4 billion.

  9. Unit fraction - Wikipedia

    en.wikipedia.org/wiki/Unit_fraction

    Slices of approximately 1/8 of a pizza. A unit fraction is a positive fraction with one as its numerator, 1/ n.It is the multiplicative inverse (reciprocal) of the denominator of the fraction, which must be a positive natural number.