The display of a student's calculator shows: 1.2731568 The student is most likely looking at

A rational number

Step-by-step explanation:

A rational number refers to numbers which can be expressed as the quotient or fraction of two integers, a numerator and a denominator.

Example: x/y

Where,

x= Numerator

y= Denominator

The denominator must not be 0

That is, y can not be zero (0)

Rational numbers includes: 1/2, 4/3, 3/9, but not 7/0

Therefore,

1.2731568 is the result of dividing rational numbers

The students is likely looking at a rational number

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.

step-by-step explanation: it is d