New SAT Math Workbook Episode 2 part 5 pot

... − − 22 5 2 5 2 25 2 2 f ()()( )− = − = − = − − 1 15 1 5 1 5 1 1 f(0) = (0) (5 0 ) = (0)(1) = 0 f (2) = (2) (5 2 ) = (2) ( 25 ) = 50 The range of f(x) = x x 5 − is the set { − 2 25 , − 1 5 , 0, 50 }. ... the city’s population 20 , 15, 10, and 5 years ago, as well as its current population). Solving for a: a a a a ×= ×= ×= = − 2 256 000 2 256 000 16 25...

Ngày tải lên: 22/07/2014, 11:20

... confirm this result): () () 50 5 28 0 2 750 50 1400 2 750 50 700 750 50 = − + = − + = − + == 50 () () 100 5 26 0 2 750 100 1300 2 750 100 650 7 = − + = −− + = − + 55 0 100 100= 9. (A) The graph ... for f(x): g(f(x)) = x 2 + 3 5. (D) f(x 2 ) = x 2 2 , and fx() () 2 = x 2 2 () . Accordingly, f(x 2 ) ÷ fx() () 2 = x 2 2 ÷ x 2 2 () = x 2 2 ·...

Ngày tải lên: 22/07/2014, 11:20

... 460% 4. (C) 5 1 25 3 41 2 3 3 25 12 100⋅==% To change a fraction to a percent, multiply by 100. 5. (B) 1 2 % = .5% = .0 05 Exercise 2 1. (C) 40 2 5 2 16 8 % = ⋅= 5 40 2. (E) 67 42 134 26 80 28 14 ×. . 3. ... FRACTION 50 % .5 1 2 25% . 25 1 4 75% . 75 3 4 10% .1 1 10 30% .3 3 10 70% .7 7 10 90% .9 9 10 33 1 3 % .33 1 3 66 2 3 % .66 2 3 16 2 3 % .16 1...

Ngày tải lên: 22/07/2014, 11:20

... SET 2 291 www.petersons.com Quick-Score Answers 1. C 2. A 3. C 4. C 5. B 6. E 7. C 8. D 9. A 10. A 11. C 12. E 13. D 14. A 15. B 16. C 17. D 18. C 19. B 20 . E 21 . C 22 . C 23 . C 24 . C 25 . D 26 . ... C 23 . C 24 . C 25 . D 26 . D 27 . A 28 . C 29 . B 30. E 31. C 32. C 33. C 34. C 35. C 36. D 37. E 38. D 39. B 40. C 41. E 42. E 43. A 44. E 45. A 46. C 47. E 48. E...

Ngày tải lên: 22/07/2014, 11:20

... second year. $960 – $1 92 = $768 value after 2 years. 2. (E) 3 5 6 2 3 3 4 1 2 5 25 5 981 2 2 =             == = () = . . . 3 20 3 66== 3. (E) 1 4 25 1 4 25 0 0 25 = == . %.%. 4. (D) 1 4 1 4 100 1 4 1 100 1 400 % ... = 1 2 420 21 0(. ) $.= 23 . (A) 3 45 12 5 7 5 67 30 7 23 723 30             == == += − − 24 . (C) If the l...

Ngày tải lên: 22/07/2014, 11:20

... is the product of 4 327 and 54 6? (A) 23 6 25 41 (B) 23 6 25 42 (C) 23 6 25 43 (D) 23 6 25 46 (E) 23 6 25 48 317 www.petersons.com Practice Tests 16. A clerk’s weekly salary is $ 320 after a 25 % raise. What was ... origin? (A) 2 (B) 2. 5 (C) 42 (D) 43 (E) 5 16. The product of 3 456 and 789 is exactly (A) 27 26787 (B) 27 267 85 (C) 27 26781 (D) 27 26784 (E) 27 26786 17...

Ngày tải lên: 22/07/2014, 11:20

... Applying the function sin 45 = 2 2 , set the value of this function equal to 5 x opposite hypotenuse       , then solve for x: 2 2 ;2 ;===== 5 10 10 2 10 2 2 52 x xx . 2. (D) Since the figure ... 5 2 (C) y = 5 2 x – 5 2 (D) y = 2 5 x + 2 5 (E) y = – 5 2 x – 5 2 Solution: The correct answer is (E). Notice that line P slopes downward from left...

Ngày tải lên: 22/07/2014, 11:20

... coordinates. 62 2 26 2 44 ++ ,,       = () 2. (C) O is the midpoint of AB. x xx y yy + + + + 4 2 2440 6 2 1 624 === === , , − A is the point (0, –4). 3. (A) d = ()() = === 84 63 4 3 16 9 25 5 22 22 − ... 2 < ∠3 (E) 2 < ∠4 5. Which of the following sets of numbers could be the sides of a triangle? (A) 1, 2, 3 (B) 2, 2, 4 (C) 3, 3, 6 (D) 1, 1 .5, 2 (E) 5, 6...

Ngày tải lên: 22/07/2014, 11:20

... square = s 2 = 36 Therefore, s = 6 and perimeter = 24 Geometry 20 5 www.petersons.com 3. RIGHT TRIANGLES A. Pythagorean theorem (leg) 2 + (leg) 2 = (hypotenuse) 2 52 25 4 29 29 22 2 2 2 () () = = = = + + x x x x B. ... = ()() = () = 1 2 46 1 2 24 12 22 xx x x 5. (C) radius of circle = 3 Area = πr 2 = 9π Exercise 2 1. (A) Area of equilateral triangle = s 2...

Ngày tải lên: 22/07/2014, 11:20

... 150 ) = 54 Multiply by 100 to eliminate decimals 63 150 54 00 63 450 54 00 9 4 950 55 0 xx xx x x ++ ++ () = = = = $ xx + 150 700= $ 8. (B) R · T = D Slow 48 x 48x Fast 55 x 55 x 48 55 51 5 103 51 5 5 xx x x + ... value. 40 50 30 40 150 0 50 150 0 10 xx xx x () ( ) = = + + − − − 2. (B) No. of Price per Total Pounds · Pound = Value x 70 70x 30 90 27 00 x + 30 85 85( x + 30...

Ngày tải lên: 22/07/2014, 11:20