# Solution Manual for Corequisite Support for College Algebra or Precalculus

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Module 1 1.1.1 1. Equation 2. Equation 3. Expression 4. Expression 5. Equation 1.1.2 ๏ฌ8 ๏ผ 1. ๏ป19๏ฝ 2. ๏ป107๏ฝ 3. ๏ญ ๏ฝ 4. ๏ป๏ญ31๏ฝ 5. ๏ป46๏ฝ ๏ฎ3๏พ 1.1.3 ๏ฌ 50 ๏ผ ๏ฌ 20 ๏ผ 1. ๏ป๏ญ7๏ฝ 2. ๏ญ ๏ฝ 3. ๏ญ ๏ฝ 4. ๏ป539๏ฝ 5. ๏ป๏ญ100๏ฝ 3 ๏ฎ ๏พ ๏ฎ3๏พ 1.1.4 ๏ฌ11 ๏ผ 1. ๏ญ ๏ฝ 2. ๏ป๏ญ14๏ฝ 3. ๏ป9๏ฝ 4. ๏ป๏ญ3๏ฝ 5. ๏ป๏ญ12๏ฝ ๏ฎ2๏พ 1.1.5 1. x ๏ซ 9 ๏ฝ ๏ญ37 ; the number is ๏ญ46 2. 8 x ๏ฝ 512 ; the number is 64 3. 4 x ๏ญ 30 ๏ฝ 78 ; the number is 27 3 4. x ๏ซ 9 ๏ฝ 27 ; the number is 24 5. 6 x ๏ซ 3.2 ๏ฝ 56.6 ; the number is 8.9 4 1.1.6 1. length: 20 inches, width 8 inches 2. 12 inches, 16 inches, 24 inches 3. 103, 104, 105, 106 4. 126, 128, 130 5. 57, 59, 61 1.2.1 1. x ๏พ ๏ญ9 2. x ๏ฃ ๏ญ5 3. x ๏ณ 7 4. x ๏ณ ๏ญ6 5. x ๏ผ 0 1.2.2 1. 3. 5. 2. 4. 1.2.3 1. ๏ป x | x ๏ณ ๏ญ8๏ฝ 2. ๏ป x | x ๏พ ๏ญ6๏ฝ 3. ๏ป x | x ๏ณ ๏ญ5๏ฝ 4. ๏ป x | x ๏พ ๏ญ2๏ฝ 5. ๏ป x | x ๏ฃ 5๏ฝ 1.2.4 1. ๏ ๏ญ8, ๏ฅ ๏ฉ 2. ๏จ ๏ญ6, ๏ฅ ๏ฉ 3. ๏ ๏ญ5, ๏ฅ ๏ฉ 4. ๏จ ๏ญ2, ๏ฅ ๏ฉ 5. ๏จ ๏ญ๏ฅ,5๏ 1.2.5 1. x ๏ฃ 5 ; ๏จ ๏ญ๏ฅ,5๏ 2. x ๏ผ ๏ญ2 ; ๏จ ๏ญ๏ฅ, ๏ญ2 ๏ฉ 3. x ๏พ 7 ; ๏จ 7,๏ฅ ๏ฉ 4. x ๏ฃ ๏ญ8 ; ๏จ ๏ญ๏ฅ, ๏ญ8๏ 5. x ๏ฃ ๏ญ3 ; ๏จ ๏ญ๏ฅ, ๏ญ3๏ 1.2.6 1. x ๏ฃ 10 2. x ๏พ 102 3. x ๏ผ 20 4. x ๏พ 8 5. 25 x ๏ซ 200 ๏ฃ 500 1.2.7 1. At least \$35 2. 12 or fewer 3. 500.5 miles or fewer 4. At least 186 5. 95 or higher Copyright ยฉ 2020 Pearson Education, Inc. 1.3.1 1. ๏ป1, 4,8,9,16, 25, 27,64,125๏ฝ 2. People who are taller than 6 feet tall or are women 3. All real numbers 4. 0, 1, 2, 3, and 4 5. A and B have no elements in common. 1.3.2 1. ๏ป1,64๏ฝ 2. Women who are taller than 6 feet tall 3. Numbers that are between 0 and 5 4. ๏จ ๏ญ4, 4๏ 5. A and B are exactly the same. 1.3.3 1. 3. 5. 2. 4. 1.3.4 1. ๏ญ6 ๏ผ x ๏ฃ 3 ; ๏ป x | ๏ญ6 ๏ผ x ๏ฃ 3๏ฝ ; ๏จ ๏ญ6,3๏ 2. ๏ญ10 ๏ฃ x ๏ฃ ๏ญ2 ; ๏ป x | ๏ญ10 ๏ฃ x ๏ฃ ๏ญ2๏ฝ ; ๏ ๏ญ10, ๏ญ2๏ 3. x ๏ฃ ๏ญ6 or 4. x ๏ผ ๏ญ1 or 5. x ๏ฃ 4 or x ๏พ ๏ญ3 ; ๏ป x | x ๏ฃ ๏ญ6 or x ๏พ 6 ; ๏ป x | x ๏ผ ๏ญ1 or x ๏พ 9 ; ๏ป x | x ๏ฃ 4 or x ๏พ ๏ญ3๏ฝ ; ๏จ ๏ญ๏ฅ, ๏ญ6๏ ๏ ๏จ ๏ญ3, ๏ฅ ๏ฉ x ๏พ 6๏ฝ ; ๏จ ๏ญ๏ฅ, ๏ญ1๏ฉ ๏ ๏จ 6, ๏ฅ ๏ฉ x ๏พ 9๏ฝ ; ๏จ ๏ญ๏ฅ, 4๏ ๏ ๏จ 9, ๏ฅ ๏ฉ 1.4.1 1. y ๏ฝ A ๏ญ 2๏ฐ r 2 4 x ๏ซ 19 ๏ญ x ๏ญ 10 ๏ญ3 x ๏ญ 5 z ๏ซ 12 P ๏ญ 2W 2. y ๏ฝ 3. y ๏ฝ 4. L ๏ฝ 5. h ๏ฝ 2๏ฐ r 3 8 4 2 1.4.2 1. 84 centimeters 2. 13 feet 3. 24 millimeters 4. 26 2 inches 5. 106 inches 5 1.4.3 1. 94.2 centimeters 2. 37.7 feet 3. 125.7 millimeter 4. 17.0 inches 5. Twice as large 1.4.4 1. 528 square centimeters 2. 12 square feet 3. 201.1 square inches 4. 70.56 square inches 5. 54 square inches 1.4.5 1. 343 cubic inches 2. 2304 cubic inches 3. 754.0 cubic centimeters 4. 75.4 cubic inches 5. 434.9 cubic inches 1.4.6 1. 500 miles/hour 2. 500 miles 3. 195 kilometers 4. 6 hours 5. 1 hour Module 2 2.1.1 1. ๏จ 5,3๏ฉ 2. ๏จ ๏ญ6,8 ๏ฉ 3. ๏จ ๏ญ3, ๏ญ2 ๏ฉ 4. ๏จ 0, ๏ญ4 ๏ฉ 5. ๏จ ๏ญ20, 40 ๏ฉ Copyright ยฉ 2020 Pearson Education, Inc. 2.1.2 1. 2. 3. Created using the Desmos Graphing Calculator Created using the Desmos Graphing Calculator Created using the Desmos Graphing Calculator 4. 5. Created using the Desmos Graphing Calculator 2.1.3 1. Created using the Desmos Graphing Calculator 2. x ๏ญ2 0 2 y 12 6 0 3. x ๏ญ3 3 9 y 7 3 ๏ญ1 4. x 2 6 ๏ญ8 y 0 10 ๏ญ25 5. x 3 ๏ญ 2 0 7 4 y ๏ญ21 Copyright ยฉ 2020 Pearson Education, Inc. ๏ญ15 ๏ญ8 x 0 ๏ญ8 4 y 6 0 9 2.1.4 1. 2. x 0 1 2 y 5 7 9 3. x ๏ญ3 0 3 y 10 8 6 Created using the Desmos Graphing Calculator Created using the Desmos Graphing Calculator 4. 5. x 0 4 8 y ๏ญ10 ๏ญ5 0 x 0 ๏ญ2 2 Created using the Desmos Graphing Calculator x 0 4 2 y 6 0 3 Created using the Desmos Graphing Calculator y 9 2 3 6 Created using the Desmos Graphing Calculator 2.2.1 ๏ฆ 9 ๏ถ 1. ๏จ ๏ญ6,0 ๏ฉ , ๏จ 0,8 ๏ฉ 2. ๏จ ๏ญ2,0 ๏ฉ , ๏จ 0, ๏ญ5 ๏ฉ 3. ๏จ 8,0 ๏ฉ , ๏จ 0, ๏ญ2 ๏ฉ 4. ๏ง ๏ญ ,0 ๏ท , ๏จ 0, ๏ญ6 ๏ฉ 5. ๏จ 42,0 ๏ฉ , ๏จ 0,35 ๏ฉ ๏จ 2 ๏ธ Copyright ยฉ 2020 Pearson Education, Inc. 2.2.2 1. 2. 3. Created using the Desmos Graphing Calculator Created using the Desmos Graphing Calculator Created using the Desmos Graphing Calculator 4. 5. Created using the Desmos Graphing Calculator Created using the Desmos Graphing Calculator 2.3.1 1. m ๏ฝ ๏ญ5 2. m ๏ฝ 11 5 3. m ๏ฝ ๏ญ 4. m ๏ฝ 0 5. Slope is undefined 4 2 2.3.2 1. m ๏ฝ 1 5 2 3 1 2. m ๏ฝ ๏ญ 3. m ๏ฝ 4. m ๏ฝ ๏ญ 5. m ๏ฝ 4 2 3 4 4 2.3.3 1. Created using the Desmos Graphing Calculator 2. 3. Created using the Desmos Graphing Calculator Created using the Desmos Graphing Calculator Copyright ยฉ 2020 Pearson Education, Inc.

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### Solution Manual for Corequisite Support for College Algebra or Precalculus

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