dhyannadh1818 dhyannadh1818

15-08-2021
Mathematics

contestada

find the sum of first 50 terms in the sequence 10n-15.

Respuesta :

15-08-2021

Answer:

485 bro just do it with calculator

Step-by-step explanation:

10×n-15

10×50-15

485

Answer Link

cwrw238 cwrw238

15-08-2021

Answer:

12,000.

Step-by-step explanation:

First term = 10(1) - 15 = -5

50th term = 10(50) - 15 = 485

Sum of 50 terms = (50/2)(-5 + 485)

= 25 * 480

= 12,000

Answer Link

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