Verified Answer :

Subtract 1 from 100. Next subtract 2 from that answer. Then subtract 3 & so on. 
Un = 100 - n*(n-1)/2 for n = 1, 2, 3, . . 

A sequence is a pattern of numbers or elements that follows a set of rules.

The sequence of the given dataset is:

\(T_n = T_{n-1} - 2\) where \(T_1 = 100\)

Given that:

\(Sequence: 100,99,97,94,90\)

Let n represent the current term

So, we have:

\(T_1 = 100\)

\(T_2 = 99\)

\(T_5 = 90\)

Notice the following:

\(T_1 = 100\)

\(T_2 = 100 - 1 = T_1 - 1\)

\(T_3 = 99 - 2 = T_2 - 2\)

and so on

Rewrite the third term as:

\(T_3 = T_2 - 2\)

Express 2 as 3 - 1

\(T_3 = T_{3-1} - 2\)

Recall that: n represents the current term.

So, we have:

\(T_n = T_{n-1} - 2\)

Hence, the sequence is:

\(T_n = T_{n-1} - 2\) where \(T_1 = 100\)

Read more about sequence at:

https://brainly.com/question/13382968