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Chapter 12: Q 91. (page 1184)

Find the thirtieth term of a sequence where the first term is 鈭�14 and the common difference is five.

Short Answer

Expert verified

131

Step by step solution

01

Step 1. Given Information.

The first term is 鈭�14 and the common difference is five.

02

Step 2. Formula used.

Write the formula of an arithmetic sequence.

an=a1+n鈭�1d

Wherea1 is the first term andd is a common difference.

03

Step 3. Find the thirtieth term.

Substitute -15 for the first term, 5 for d, and 30 for nin the above formula.

a30=鈭�14+30鈭�15=-14+145=131

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Most popular questions from this chapter

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