(Score for Question 2: _ of 4 points) 2. A contractor is building a set of stairs out of concrete. Each stair is exactly the same length, width, and height. 1.8 m 1.2 m 2.4 m (a) Which solid figures can the stairs be broken into? What are the dimensions of each solid figure? (b) How much concrete will be needed to form the stairs? ​

hremna

Step-by-step explanation:

here

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.