agwachter586 agwachter586

03-04-2021
Mathematics

contestada

What is S7 for the arithmetic series: a1 = 26, d = 3, and a7 = 44

Respuesta :

alikhanbilyaliyev alikhanbilyaliyev

03-04-2021

Answer:

The answer is 245

Step-by-step explanation:

For arithmetic series with n=7: S7=(a1+a7)*7/2

Thus, S7=(26+44)*7/2=245

The answer is 245

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