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2. Grade (slope) - Wikipedia

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

   l = slope length α = angle of inclination. The grade (US) or gradient (UK) (also called stepth, slope, incline, mainfall, pitch or rise) of a physical feature, landform or constructed line refers to the tangent of the angle of that surface to the horizontal. It is a special case of the slope, where zero indicates horizontality. A larger number ...

3. Slope - Wikipedia

   en.wikipedia.org/wiki/Slope

   Slope illustrated for y = (3/2)x − 1.Click on to enlarge Slope of a line in coordinates system, from f(x) = −12x + 2 to f(x) = 12x + 2. The slope of a line in the plane containing the x and y axes is generally represented by the letter m, [5] and is defined as the change in the y coordinate divided by the corresponding change in the x coordinate, between two distinct points on the line.

4. Stream gradient - Wikipedia

   en.wikipedia.org/wiki/Stream_gradient

   Stream gradient (or stream slope) is the grade (or slope) of a stream. It is measured by the ratio of drop in elevation and horizontal distance. [ 1 ] It is a dimensionless quantity , usually expressed in units of meters per kilometer (m/km) or feet per mile (ft/mi); it may also be expressed in percent (%).

5. Mathematics education in the United States - Wikipedia

   en.wikipedia.org/wiki/Mathematics_education_in...

   A typical sequence of secondary-school (grades 6 to 12) courses in mathematics reads: Pre-Algebra (7th or 8th grade), Algebra I, Geometry, Algebra II, Pre-calculus, and Calculus or Statistics. However, some students enroll in integrated programs [3] while many complete high school without passing Calculus or Statistics.

6. 1 dead, 6 firefighters injured in 3-alarm apartment building ...

   www.aol.com/news/1-dead-6-firefighters-injured...

   One person was killed and six firefighters were injured after a multi-alarm fire broke out in an apartment building on the Upper East Side of Manhattan on Monday. #FDNY Operations are ongoing at ...

7. Elementary mathematics - Wikipedia

   en.wikipedia.org/wiki/Elementary_mathematics

   The slope of a line is a number that describes both the direction and the steepness of the line. [11] Slope is often denoted by the letter m. [12] Trigonometry is a branch of mathematics that studies relationships involving lengths and angles of triangles. The field emerged during the 3rd century BC from applications of geometry to astronomical ...