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vampirchik [111]
3 years ago
9

Which choice is the explicit formula for the following geometric sequence? 0.2, -0.06, 0.018, -0.0054, 0.00162

Mathematics
1 answer:
Crazy boy [7]3 years ago
8 0

Answer:

aₙ = 0.2(-0.3)⁽ⁿ⁻¹⁾

Step-by-step explanation:

The geometric sequence with the first term a, a common ratio r has the nth term given as

Tₙ = arⁿ⁻¹

where Tₙ is the nth term

From the given sequence

a = 0.2

r = -0.06/0.2

= -0.3

Hence the nth term

= 0.2 * -0.3ⁿ⁻¹

The right option is E

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Answer:

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Step-by-step explanation:

|p+8|

-------------- = 5

2

Multiply each side by 2

|p+8|

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2

|p+8|  =10

There is a positive and a negative solution

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Subtract 8 from each side

p+8-8=10-8         p+8-8=-10-8

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3 years ago
If sally saves 18% of the money she has earned ($200) how much money does she have left?
Vikentia [17]

Answer:

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Step-by-step explanation:

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3 years ago
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stealth61 [152]

Answer:

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Step-by-step explanation:

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The age of the third sibling is x + 2 = 13 + 2 = 15

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