A Wall is 4m and 40 cm thick (wide.
It contains two windows of demension 2.5m×1m and a gate way of demension 2m ×3m. if 24560 cubical bricks of length 20cm are required to construct the wall
find the length of the wall

​

m∠vru = 80°

m∠urw = 15°

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.

a

b

d

step-by-step explanation: