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lakinbacon4
25.10.2021 •
Mathematics
Which equation could be used to calculate the sum of the geometric series?
4+1+14+116+164
Recall that Sn=a1(1−rn)(1−r)
Group of answer choices
S5=14(1−(4)5)(1−4)
S5=4(1−(14)5)(1−14)
S5=4(1−14)
S5=14(1−4)
Solved
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Ответ:
x = 4
Step-by-step explanation:
2/3(x -7) = -2 . . . . . given
x -7 = -3 . . . . . . . . . multiply both sides by 3/2
x = 4 . . . . . . . . . . . . add 4 to both sides