Respuesta :

no, this is not arithmetic

                                                                                                          

Answer:

This is not an arithmetic progression

Step-by-step explanation:

We have given the sequence 10,15,21,28

This is not an arithmetic sequence because arithmetic sequence is that sequence of terms in which there is common difference between all the terms

[tex]d=a_2-a_1[/tex]

d=15-10=5  here, [tex]a_2=15,a_1=10[/tex]

d=21-15=6  here, [tex]a_2=21,a_1=15[/tex]

d=28-21=7   here, [tex]a_2=28,a_1=21[/tex]

Therefore, not an arithmetic progression.

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