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Class Opener:

For the given sequence: 3,12,48,192… find the indicated term:

- 5th term 2. 14th term 3. nth term
Find for a geometric sequence with the given terms.

Geometric Mean

- You can find the geometric mean of any two positive numbers by taking the positive square root of the product of the two numbers.

Find the Geometric Mean

- 20,____,80
- 28,_____,5103

Work Groups:

Need Help: Pg. 217 – 221

Kind of Understand: Pg. 521

I Got This: Pg. 522 and Word Problems Page

Word Problem Practice:

- Split into groups of 2
- Work together to solve the word problems passed out from yesterday.

Exit Slip:

Suppose a balloon is filled with 5000 of helium. It then loses one fourth of its helium each day.

- Write the geometric sequence that shows the amount of helium in the balloon at the start of each day for five days.
- What is the common ratio of the sequence?
- How much helium will be left in the balloon at the start of the tenth day.

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