kimberlyb45 kimberlyb45

09-10-2020
Mathematics

contestada

Find the sum of the arithmetic sequence 22, 11, 0, -11, ..., –77.
A -198
B.-275
C. -297
D. -385

Respuesta :

niveah1220 niveah1220

15-10-2020

Answer:

B.

Step-by-step explanation:

First you need to figure out how many numbers there are, so with this you can simply count 10. Then use the formula to plug in the numbers: 10(22-77)/2 to get the answer.

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