| Section | Page | Answers |
|---|---|---|
| NOTATION | FRACTIONS: I would not normally use slant fractions; however, it is the only way I know
to do it in this mode. This could create confusion or a wrong answer if I
did not use parentheses when multiplying a slant fraction by another factor.
I would expect your answers to use "straight over" fractions and not have these
extra parentheses (as in #18 in 8.2B.)
EXPONENTS: I will also have to use the ^ symbol to indicate something is raised to a power. Some of you may be familiar with this from your calculator. So for example, x^2 means "x squared". | |
| OTHER EVEN ANSWERS | For some sections that you are told to do ALL, the even answers are provided on a worksheet that is used with the section (such as 8.3, 8.4 & 9.3.) | |
| 4.6A | 208 | #2. {1} #4. {-4} #6. {4} #8. {3/4}
#10. {23/35} #12. {6}
#14. {62} #16. {1/6, 6} #18. {-1/3, 9}
#20. {11} #22. {-4/27} #24. {3} #26. No Solution #28. {10}
#30. {3/4, 4/3} #32. {1/4} #34. {-1, 13/15} #36. {-5, 0} #38. {-5, 10} #40. {-3, -2/3} #42. {17} |
| 4.6B | 208 | #44. {-4, 3}
#46. 17.5 ft by 28.75 ft; #48. 60 degrees;
#50. 9, 71;
#52. 9450 females, 6750 males; #54. $147,000; #56. 19; #58. $225,000; #60. W = 21 cm; L = 36 cm. |
| 5.5 | 260 | #50. {5} #52. {13} #54. {4} #56. {9} |
| 6.2B | 293 | #22. {8, 2} #24. {4} #26. {20} |
| 6.5C | 317 | (Sorry that I can't make these look like proper form; but
you should be able to check yourself): #34. plus or minus square root of 3; plus or minus 3 times
square root of 2; #36. plus or minus 2; plus or minus 2 times square root of 15 over 5;
#38. plus or minus 3/2; plus or minus i times square root of 5; #40. plus or minus square root of 6 over 3; plus or minus 3 times square root 2 over 2. #76. {1,9} #78. {-27,8} #80. (-1/6, 1/2} |
| 6.5E | 318 | #56. Larry drove 52 mph, Terrell drove 54 mph #58. 20 mph |
| 8.2B | 408 | (SEE NOTATION above on Slant FRACTIONS use.)
#18. f(x) = (-3/5)x - (13/5) #20. f(x) = x - 1 #22. f(x) = -3x + 13 |
| 9.2B | 473 | (SEE NOTATION above on EXPONENTS use.)
#22. Yes #24. No #26. Yes #28. Yes #30. No #32. Yes #34. Yes #36. f(x)=(x+1)(x+9)(x-4) #38. f(x)=(x-3)(3x+2)(2x-1) #40. f(x)=(x-5)(2x-1)(x+6) #42. f(x)=(x+3)(x^2+1)(x+1)(x-1) #44. f(x)=(x+4)(2x-3)^2 |