Answered

Welcome to Westonci.ca, where your questions are met with accurate answers from a community of experts and enthusiasts. Get quick and reliable solutions to your questions from knowledgeable professionals on our comprehensive Q&A platform. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.

which expressions are equal to 50Σn(n+6)?

Sagot :

really226

Answer:

S(n)=(25/3)n(n+1)(2n+19)

Step-by-step explanation:

sum_(n=1)^k n (6 + n) = 1/6 k (k + 1) (2 k + 19)

[tex]sum_(n=1)^k n (6 + n) = (1/6) k (k + 1) (2 k + 19)\\50(1/6) k (k + 1) (2 k + 19)\\=(25/3)k (k + 1) (2 k + 19)[/tex]

This is the equation in general:

substitute n for sum from 1 to n

For sum from k to n, substitute:

S(n)-S(k-1)

Answer:

Part 1: B and D

Part 2: C

Part 3: 50575

Step-by-step explanation:

View image jazzypuppies1
We hope this was helpful. Please come back whenever you need more information or answers to your queries. We hope you found this helpful. Feel free to come back anytime for more accurate answers and updated information. Thank you for visiting Westonci.ca. Stay informed by coming back for more detailed answers.