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Lunna [17]
3 years ago
15

Find the 104 term of the sequence -2,1,4,7,...

Mathematics
1 answer:
telo118 [61]3 years ago
6 0

Answer:

307.

Step-by-step explanation:

Arithmetic sequence with first term a1 = -2 and common difference d = 1 - -2 = 3

an = a1 + d( n - 1), so

a104 = -2 + 3(104 - 1)

= -2 + 309

= 307.

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here are 1515 people in an office with 55 different phone lines. If all the lines begin to ring at once, how many groups of 55 p
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