CCSS.Math.Content.HSF.LE.A.2

What is the common ratio for the sequence:
28, 14, 7, 3.5...

• 2
• 1/2
• -14
• -7

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CCSS.Math.Content.HSF.LE.A.2

A liquid is evaporating. The amount of a liquid remaining, in liters, after x weeks is modeled by the equation y = 100(0.78)^x.  Approximately what percent of the liquid evaporates per week?

• 22%
• 47%
• 53%
• 78%

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CCSS.Math.Content.HSF.LE.A.2

What is the sum of the first 10 terms for the following geometric series:
2-6+18-54+...

• 59048
• -29524
• 524288
• 3069

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CCSS.Math.Content.HSF.LE.A.2

Use the formula S_n to find the sum of the first five terms of the geometric sequence.

• 124/3

• 41

• 42

• 125/3

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CCSS.Math.Content.HSF.LE.A.2

The population of Cary, NC in the year 2000 was 97,400 people. The population steadily grew by 2.5% each year. Which function relates to the situation? Let Population (P) be a function of time (t)

• P(t)=97400+2.5t
• P(t)=97400(2.5)^t
• P(t)=97400(1.25)^t
• P(t)=97400(1.025)^t

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CCSS.Math.Content.HSF.LE.A.2

Write the explicit formula for the geometric sequence.

• a_n = 2(100)^n-1
• a_n = 100(2)^n-1
• a_n = 100(1/2)^n-1
• a_n = (1/2)(100)^n-1

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CCSS.Math.Content.HSF.LE.A.2

Is the sequence 9, 99, 999, 9999,... geometric?

• no

• yes

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CCSS.Math.Content.HSF.LE.A.2

Which company shows a greater rate of change?

• Water's Edge Rafts
• Ryan's Rafts

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CCSS.Math.Content.HSF.LE.A.2

• 16

• 23

• 4

• 30

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CCSS.Math.Content.HSF.LE.A.2

The first three terms of an arithmetic sequence are as follows

13, 19, 25

What are the next two terms of the sequence?

• 31 and 37

• 31 and 36

• 30 and 37

• 30 and 36

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CCSS.Math.Content.HSF.LE.A.2