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Math Applications Solutions and Notes 3. a. 125 + 0.4x b. 125 + 0.4(300) = 125 + 120 = 245 c. 25 + 0.6x d. 25 + 0.6(200) = 25 + 120 = 145 4. a. 9,500 + 5,700 + 3,420 + 2,052 + 1,231.2 + 738.72 + … b. a 1 = 9,500; r = 5 , 700 9, 500 = 0.6 a 7 = 9,500(0.6) 6 = 443.232 ∞ ∑ c. 9, 500( 06 . ) n n= 0 ∞ ∑ 9, 500( 06 . ) = 0 Math Applications 423
Math Applications Solutions and Notes 5. a. 500(190 + 7(0)) = 500(190) = 95,000 b. 500(190 + 7(6)) = 500(190 + 42) = 500(232) = 116,000 c. Year 2 = 500(190 + 7) = 500(197) = 98,500 Year 3 = 500(190 + 14) = 500(204) = 102,000 Year 4 = 500(190 + 21) = 500(211) = 105,500 Year 5 = 500(190 + 28) = 500(218) = 109,000 Year 6 = 500(190 + 35) = 500(225) = 112,500 95,000 + 98,500 + 102,000 + 105,500 + 109,000 + 112,500 + 116,000 = 738,500 738,500 > 735,800, so Yoshi can expect to produce enough Sheet of seaweed over the next 7 years to be profitable. 6. a. a 2 = $750,000(1.1) = $825,000 b. a 3 = $825,000(1.1) = $907,500 $905,000 < $907,500, so Mari did not earn a bonus. c. a 5 = $750,000(1.1) 5–1 = $750,000(1.4641) = 1,098,075 d. yes; a 2 would now equal $900,000 instead of $825,000 and would increase each subsequent number. e. a n = 1.1(a n–1 ) 6 ∑ 500( 190 + 7) = 0 424 Chapter 9 Sequences and Series
Page 1 and 2: LESSON OBJECTIVES 9.1 Patterns •
Page 3 and 4: LESSON PLANNING Vocabulary sequence
Page 5 and 6: INSTRUCTION Example 2 Return to the
Page 7 and 8: Answers to Math Applications Math A
Page 9 and 10: INSTRUCTION Tell students that the
Page 11 and 12: INSTRUCTION Ongoing Assessment Show
Page 15 and 16: INSTRUCTION Tell students that the
Page 17 and 18: Problem Solving Before solving this
Page 21 and 22: INSTRUCTION Students might incorrec
Page 23 and 24: WRAP UP To ensure mastery of object
Page 25 and 26: Mixed Review Additional Answers 35.
Page 27 and 28: INSTRUCTION Ask students to express
Page 29 and 30: WRAP UP To ensure mastery of object
Page 31 and 32: MATH LAB Activity 1 PREPARE • An
Page 33: Math Applications Solutions and Not
Page 37 and 38: Math Applications Solutions and Not
Page 39 and 40: Math Applications Solutions and Not
Page 41 and 42: Vocabulary Review arithmetic mean (
Page 43 and 44: 1 2 10 , 922 1 2 ∞ 1 ∑

hvvrq $ulwkphwlf 6htxhqfhv dqg 6hulhv - NCPN

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