ADA guidelines mandate a 1:12 ratio of rise to run for wheelchair ramps. How long (horizontally) would a ramp need to extend to elevate a person from a height of 2 feet to a height of 6 feet? If a ramp extends 30 feet horizontally, what is the maximum increase in elevation that it could result in?

Step-by-step explanation:

If the slope of a ramp is between 1:12 and 1:16, the maximum rise shall be 30 inches (760 mm) and the maximum horizontal run shall be 30 feet (9 m). If the slope of the ramp is between 1:16 and 1:20, the maximum rise shall be 30 inches (760 mm) and the maximum horizontal run shall be 40 feet (12 m).

so then yh i did all i can do

associative property hopes this ! : )

step-by-step explanation:

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.