Thread: I dont even know what to title this... help please :(

Evaluate
100
å (100 – 2K)
K=5

thank u so much

is this what you're trying to find?

You can pull out the 100 from the equation, and have

Now you can pull our the 2 from the summation

Now simply solve that summation, which should be easy.

thank u so much... you are wonderful!

Hello, Steph07!

Evaluate: .

We have: .

This is an arithmetic series with:
. . first term , common difference , and terms.

The sum is: .

omg, thank u I was still workin on that one.. thank u so much