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2 years ago

The table shows the temperature of a cooling cup of coffee.

1 answer:

6 0

Based on the given table, the common ratio, explicit formula and temperature of the coffee after 15 minutes is 0.98, Tn = 97 × 0.98^(n-1) and 73.1°C

<h3>Geometric sequence</h3>

Common ratio, r = second minutes / first minutes

= 95.1 / 97

= 0.98041237113402

Approximately,

r = 0.98

nth term of the sequence, Tn = ar^n -1

Tn = 97 × 0.98^(n-1)

Temperature of the coffee after 15 minutes, T15 = 97 × 0.98^(n-1)

= 97 × 0.98^(15-1)

= 97 × 0.98^14

= 97 × 0.7536419414749019520643907584

= 73.1032683230654893502459035648

Approximately,

T15 = 73.1°C

Learn more about common ratio:

brainly.com/question/1509142

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Answer:

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<u><em>The picture of the question in the attached figure N 1</em></u>

we know that

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see the attached figure N 2 to better understand the problem

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