11.2 ws answers

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11.2 ws answers
PreCalculus (H)
11.2 worksheet "Arithmetic Sequences"
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Find the cofirmon difference and write out the first 4 terms.
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Find the indicated term in each arithmetic sequence.
8) 12th termof 2,4,6,...
9) L0th term of L,-2,-5,...
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15) 5 +9 +13+...+ 49
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Use a calculator to find the sum of each sequence.
18) 2.8 +5.2+7.6+...+36.4 (19) 4.9 +7.48+L0.06+...+66.82
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20) The Drury Lane Theater has 25 seats in
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additional seat. How many seats are in the theater?
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2l) The corner section of a football stadium has 15 seats in the first row and 40 rows in all. Each successive
row contains two additional seats. How many seats are in this section?
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in the corner section of a stadium containing 2040 seats if the first row has
and each successive row has 4 additional seats?
22) How many rows
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