14. The slope of a roof is called the pitch and is defined as follows: pitch = rise of roof ½ span of roof Find the pitch of a roof if the rise is 12 feet and the span is 30 feet. Find the pitch of a roof if the rise is 4 feet and the span is 24 feet.

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.

70

step-by-step explanation:

113.1

step-by-step explanation:

v=4

3πr3=4

3·π·33≈113.09734