Math 20 Math 25 Math Tips davidvs.net |

Textbook Homework

**Section 1.1 (Page 8)** # 43, 45

**Section 1.6 (Page 43)** # 1, 5, 11, 13, 17, 21

**Section 4.1 (Page 222)** # 53, 55, 57, 61, 65, 69, 71

**Section 4.5 (Page 255)** # 49

**Section 1.6 (Page 43)** # 25, 35, 47, 69

**Section 4.6 (Page 262)** # 1, 3, 17, 19, 21, 23

**Section 1.5 (Page 32)** # 1, 3, 5, 7, 9, 11

**Section 2.1 (Page 91)** # 5, 7, 29, 31, 49, 53, 57, 61

**Section 2.2 (Page 97)** # 1, 3, 5, 7, 9, 11, 13

**Section 4.1 (Page 222)** # 93

**Section 2.5 (Page 120)** # 1, 3, 5, 7, 15, 21, 25, 33

**Section 4.1 (Page 251)** # 9, 11, 15, 17, 21, 23, 25

**Section 4.5 (Page 255)** # 1, 3, 5, 7, 9, 11, 17, 21, 25, 27

**Section 2.3 (Page 104)** # 25, 41

**Section 5.1 (Page 290)** # 13, 19, 21, 25, 27, 35, 37, 39

**Section 5.2 (Page 296)** # 1, 3, 7, 9, 11, 17, 21, 31, 47

**Section 4.3 (Page 235)** # 9, 11, 13, 15, 17, 19

**Section 4.4 (Page 245)** # 37, 39, 41, 43, 45, 47

**(#48)** 0.0234

**Section 6.1 (Page 341)** # RC1, RC3, 1, 3

**Section 6.1 (Page 342)** # 7, 13, 15, 19, 21, 22, 27, 35, 37, 45, 47, 69, 71, 73

**(#22)** 0.055

**Section 6.2 (Page 349)** # 1, 3, 11, 15, 17, 19, 25, 27, 37, 39, 41, 43, 45, 47, 49, 55, 57, 59, 61, 73, 79, 81

**Section 8.4 (Page 479 or 501)** # 65, 67

**Section 8.2 (Page 467 or 489)** # 57, 59

**Section 8.1 (Page 460 or 482)** # 1, 3, 5, 9, 15, 19, 21, 29, 35

**(#26)** 3 miles, **(#36)** 1 mile

**Section 8.3 (Page 470 or 493)** # 1, 3, 5, 7, 9, 11, 23, 25, 27, 29

**Section 8.4 (Page 479 or 501)** # 3, 5, 9, 11

**Section 8.5 (Page 486 or 508)** # 13, 15, 25

**Section 8.2 (Page 467 or 489)** # 1, 5, 11, 23, 33, 35, 37, 39, 43, 45

**Section 8.4 (Page 479 or 501)** # 15, 19, 21, 27, 33, 35, 37, 73

**Section 8.5 (Page 486 or 508)** # 3, 5, 7, 13, 25, 65

**Section 8.7 (Page 498 or 520)** # 1, 5, 7, 13, 15, 23, 33

**Section 9.1 (Page 513 or 535)** # 23, 25, 27

**Section 9.6 (Page 561 or 583)** # 1, 5, 9, 13, 17, 21, 25

**Section 2.6 (Page 126)** # 3, 5, 11, 17, 41, 43

**Section 2.7 (Page 135)** # 9, 11, 13, 17, 21

**Section 5.2 (Page 296)** # 1, 3, 7, 9, 11, 17, 21, 31

**Section 3.1 (Page 151)** # 3, 5, 7, 9, 17, 21

**Section 3.2 (Page 157)** # 3, 5, 7, 11, 15, 21, 27, 31, 33

**Section 3.3 (Page 165)** # 3, 5, 7, 9, 11, 15, 17, 27, 31, 35

**Section 3.4 (Page 171)** # 5, 7, 9, 33, 35, 37

**Section 5.1 (Page 290)** # 13, 19, 21, 25, 27, 35, 37, 39, 45, 51, 53

**Section 4.4 (Page 245)** # 55, 57, 65, 67, 69, 71, 73

(none)

**Section 6.5 (Page 375)** # 25, 26, 27, 28, 31, 37, 39

**(#26)** $16 change is an 8% increase, **(#28)** $18 change is a 20% decrease

**Section 8.4 (Page 479 or 501)** # 69

(none)

**Section 6.7 (Page 396)** # 1, 3, 5, 9, 11, 35, 37

**Section 8.1 (Page 460 or 482)** # 7, 26, 27, 33, 35, 36, 47

**(#26)** 3 miles, **(#36)** 1 mile

**Section 8.5 (Page 486 or 508)** # 11, 65

**Section 9.1 (Page 513 or 535)** # 1, 3, 5, 7, 9, 13, 15, 19, 31

**Section 9.2 (Page 521 or 543)** # 3, 5, 13, 17, 21, 23, 27, 28, 29, 30, 33

**(#28)** 6.8 km^{2}, **(#30)** 717.5 cm^{2}

**Section 9.3 (Page 531 or 553)** # 1, 5, 10, 13

**(#10)** 3.454 feet

**Section 1.7 (Page 52)** # 5, 7, 9, 11, 13, 15, 19, 21, 23, 25, 31, 45, 55

**Section 2.2 (Page 52)** # 41, 45

**Section 2.7 (Page 135)** # 33, 35, 37, 39

**Section 4.2 (Page 227)** # 49, 53

**Section 4.4 (Page 245)** # 49, 51, 53

**Section 5.3 (Page 304)** # 1, 5, 7

**Section 5.3 (Page 304)** # 11, 25, 43, 47, 49, 67, 69

**Section 5.4 (Page 315)** # 1, 3, 5, 9, 12, 13, 19, 29, 31, 33

**(#12)** 0.96 ounce

**Section 5.5 (Page 324)** # 1, 3, 5, 7, 9, 15, 17, 27

**Section 6.3 (Page 357)** # 1, 2, 3, 4, 5, 7, 13, 15, 21, 25, 27, 31, 37, 39, 43

**(#2)** 98% × 57 = *a*, **(#4)** *p* × 25 = 8

**Section 6.4 (Page 363)** # 1, 2, 3, 5, 6, 13, 15, 21, 25, 27, 29, 31, 35, 37, 43

**(#2)** ^{66}⁄_{100} = ^{a}⁄_{274}, **(#6)** ^{N}⁄_{100} = ^{5.3}⁄_{6.8}

**Section 6.5 (Page 375)** # 3, 5, 11, 23

**Section 6.6 (Page 386)** # 1, 5, 9, 11, 19, 21, 23, 33, 35, 37, 39, 41, 51

**Section 6.7 (Page 396)** # 35, 37

(none)

**Section 8.6 (Page 493 or 515)** # 27, 33, 37, 47, 49

**Section 9.2 (Page 521 or 543)** # 35, 39, 43, 45, 67

**Section 9.3 (Page 531 or 553)** # 17, 19, 21, 27, 29, 35, 37

(we do not do any)