The number of hair on the Zorkian Ziders follows an arithmetic sequence
The fifth Zorkian Ziders will have 21 hairs
From the diagram, the hair on the first three Zorkian Ziders are:
[tex]T_1 = 5[/tex]
[tex]T_2 = 9[/tex]
[tex]T_3 = 13[/tex]
Notice that the difference in the number of hair in each Ziders is 4.
This means that, the number of hair on the 4th will be:
[tex]T_4 =T_3 + 4[/tex]
[tex]T_4 = 13 + 4 = 17[/tex]
Using the same calculation, the number of hair on the 5th will be:
[tex]T_5 =T_4 + 4[/tex]
[tex]T_5 = 17 + 4[/tex]
[tex]T_5 = 21[/tex]
Hence, the 5th Zorkian Ziders will have 21 hairs
Read more about arithmetic sequence at:
https://brainly.com/question/5243529
