haileyadamson39 haileyadamson39

13-05-2020
Mathematics

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PLEASE HELP I WILL MARK BRAINLIEST

PLEASE HELP I WILL MARK BRAINLIEST class=

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Chelboy Chelboy

13-05-2020

Answer:4600

Step-by-step explanation:

-6,-2,2,6,...

First term=a=-6

Common difference=d=-2-(-6)=4

Using the formula

Sn=n/2 x [2a + d x (n-1)]

S50=50/2 x [2x-6 + 4x(50-1)]

S50=25 x [-12 + 4 x 49]

S50=25 x [-12 + 196]

S50=25 x 184

S50=4600

Sum Of The first 50 terms is 4600

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