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Oxana [17]
3 years ago
8

Need help on #18 & #19 please

Mathematics
1 answer:
aliina [53]3 years ago
3 0

Answer:

18: x=2 y=2.5

19: y = 0.5

Step-by-step explanation:

2(2)=4

2.5(2)=5

4+5=9

2×0.5=1

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Additionally, we can notice that Option 1 is an example of an arithmetic sequence whereas Option 2 is an example of a geometric sequence. Their explicit formulas would be aₙ = 50n + 250 and aₙ = 5 * 3⁽ⁿ⁻¹⁾ respectively.

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