meer282 meer282
  • 24-02-2019
  • Mathematics
contestada

how do i solve this please help​

how do i solve this please help class=

Respuesta :

jimrgrant1 jimrgrant1
  • 24-02-2019

Answer:

see explanation

Step-by-step explanation:

(a)

[tex]S_{n}[/tex] = 1 + 2 + 3 + 4 + 5 + ..... ( to n terms ), that is

∑ n ( for r = 1 to n )

∑ n = [tex]\frac{1}{2}[/tex] n(n + 1) = [tex]S_{n}[/tex]

(b)

[tex]S_{30}[/tex] = [tex]\frac{1}{2}[/tex] × 30 × 31 = 465

Answer Link

Otras preguntas

PLEASE HELP ASAP I WKLL MARK BRAINLIEST AND 13 POINTS
Who did Hitler blame for the failure of the Weimar Republic? Question options: A. The Americans B. The French C. Communists and Jewish People D. The English
If you were to examine a sample of connective tissue cells from an adult bear and a second sample from ? fetus (an unborn, growing offspring of a mammal) of the
Solve 3s > 36. Graph the solution. The solution is can someone help plsss
WILL GIVE BRAINLIEST AND MAX POINTS​
What can a modern person learn from Clara Barton’s
hello humans ~The bacterium present in curd is:Salmonella typhiLactobacillusPenicillinVibrio cholera​
A pediatric client with a ventricular septal defect repair is placed on a maintenance dose of digoxin. The safe dose is 0. 03 mg/kg/day, and the client's weight
I understand nothing," answered the nose. "I repeat, please explain yourself more distinctly. " "Honourable sir," said Kovaloff with dignity, "I do not know how
Please help!!!!!!!!!!!!