How are the slope formula and finding slope using rise over run related?

How are the slope formula and finding slope using rise over run related?
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If you define the rise and run in terms of the coordinates oftwo points on the line whose slope you are trying to find, then youshould see that the two are exactly the same.
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Last Answer : (A) 100/n²

If T and R are the tread and rise of a stair which carries a load w per square metre on slope, the corresponding load per square metre of the horizontal area, is (A) w (R + T)/T (B) w (R² + T²)/T (C) w (R + T)/T (D) w (R/T)

Description : If T and R are the tread and rise of a stair which carries a load w per square metre on slope, the corresponding load per square metre of the horizontal area, is (A) w (R + T)/T (B) w (R² + T²)/T (C) w (R + T)/T (D) w (R/T)

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Last Answer : Answer: Option C

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A sewer has a diameter of 300 mm and slop of 1 in 400. While running full it has a mean velocity of 0.7 m/s. If both the diameter and slope are doubled (to respectively be 600 mm and 1 in 200), what will be the changed mean velocity when running half-full? Use Manning’s formula. (a) 1.59 m/s (b) 2.80 m/s (c) 0.90 m/s (d) 1.00 m/s

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