Ask a New Question

Question

Why do you make it clear so that I can understand how to calculate
3 years ago

Answers

Anthony
The sum of the first eight terms of an arithmetic progression is 220 if the third terms is 17.
Find the sum of the first six terms?
3 years ago
oobleck
8/2 (2a+7d) = 220
a+2d = 17
a=3 and d=7
That makes the sum you want
S6 = 6/2 (2*3+5*7) = ____
3 years ago

Related Questions

can you please make it clear what this question is asking, im a little confused. "¿Cómo estuvo la... Make two clear sentences out of these five, avoiding 'so' and 'then'. The burglar climbed hastily... I first want to make it clear that I have only taken Geometry, Algebra I, and pre-Algebra. That seem... I want to make it clear that I do not want any answers to the project I am about to post on here. I... Make a clear, defensible claim about the topic of the text. Write a paragraph to support your... Can you make this clear and fix grammar isssues From this experiment the independent variable (c... Bot, make this sound clear as possible. I have a question. I recently requested a new modem to be... how can i make more clear To strengthen for detention practices, regarding section 189 of the Migr... Can you make this sound clear? PowerThe term ‘power’ in this context is derived from the Greek word... Can you make this clear and powerful and easy to understand? Psalms 113 is one of the Hallel psal...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use