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Class Opener:. For the given sequence: 3,12,48,192… find the indicated term: 5 th term 2. 14 th term 3. n th term Find for a geometric sequence with the given terms. Geometric Mean .
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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.