Question

Drag the values to the correct locations to write this series using sigma notation and find the sum of the terms. Not all values will be used.

45 + [45 − 2.5] + ⋯ + [45 − 4(2.5)]

Answer 1

Answer:

$\displaystyle \\\sum_{k=0}^4 45-2.5k=200$

Step-by-step explanation:

We start off with the term 45 and decrease by 2.5 each term, ending with four 2.5's subtracted from 45.

Therefore, our index starts at k=0 and ends at 4. The general term can be defined then as $\displaystyle \\\sum_{k=0}^4 45-2.5k$ and evaluating yields 200.