# math

NUMBER SEQUENCES

identify the sequence as arithmetic, geometric, both, or neither.

1. 7, 9, 11, 13,...

arithmetic****
geometric
both
neither

2. 2, 1, 1/2, 1/4,...

arithmetic
geometric****
both
neither

write a rule for the sequence

3. 1, 2, 4, 8,...

start with 1 and then add 1 repeatedly
start with 1 and then multiples of 2 repeatedly
start with 1 and then multiply by 2 repeatedly****
start with 1 and then divide by 2 repeatedly

4. 50, 40, 30, 20,...

start with 50 and then add 10 repeatedly
start with 50 and then add -10 repeatedly****
start with 20 and then add 10 repeatedly
start with 50 and then add multiples of 10 repeatedly

find the next three terms in the sequence

5. 4, 12, 36, 108,...

304, 912, 2,736
324, 972, 2,916****
354, 1,062, 3,186
332, 996, 2,988

correct me if i am wrong

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2. 👎 0
3. 👁 177
asked by mjc_177
1. no correction needed

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2. 👎 0
posted by R_scott
2. ok thx

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2. 👎 0
posted by mjc_177

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