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Welcome to Alg. 2A. Welcome to Geometry B!. u n t. k e i + c. w. 3 m. Today’s agenda.  Warm-up  Correct 11.1 Skills Practice #1-6  11.1B Notes  Assignment: 11.1 Skills Practice. Warm-up. Write an equation for the n th term of each arithmetic sequence. 4, 11, 18, . . .

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  1. Welcome to Alg. 2A Welcome to Geometry B! unt kei+ c w 3m

  2. Today’s agenda  Warm-up  Correct 11.1 Skills Practice #1-6  11.1B Notes  Assignment: 11.1 Skills Practice

  3. Warm-up • Write an equation for the nth term of each arithmetic sequence. • 4, 11, 18, . . . • 21, 15, 9, . . .

  4. Hw questions?

  5. I CAN . . . • ~use arithmetic sequences to find the indicated terms. • ~find arithmetic means. Lesson 11.1B

  6. vocabulary terms between any two nonsuccessive terms of an arithmetic sequence 30 63 41, 52

  7. Example 4: 41 85 19, 30, 41, 52, 63, 74, 85, 96 Using the sequence above, what are the arithmetic means between 41 and 85? 52, 63, 74

  8. Example 5: three Using the nth term formula, find the three arithmetic means between 21 and 45. 21 45 = 21+ ( 5– 1) d 45 45 = 21 + 5d – d 45 = 21 + 4d 5 27, 33, 39 24 = 4d 6 = d

  9. Example 5: three Using the nth term formula, find the three arithmetic means between 13 and 25. 13 25 = 13+ ( 5– 1) d 25 25 = 13 + 5d – d 25 = 13 + 4d 5 16, 19, 22 12 = 4d 3 = d

  10. Today’s assignment 11.1 Skills Practice #7-13

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