New SAT Math Workbook Episode 2 part 4 docx

... coordinates. 62 2 26 2 44 ++ ,,       = () 2. (C) O is the midpoint of AB. x xx y yy + + + + 4 2 244 0 6 2 1 6 24 === === , , − A is the point (0, 4) . 3. (A) d = ()() = === 84 63 4 3 16 9 25 5 22 22 − ... < 3 2 (B) b > 3 2 (C) b <− 3 2 (D) b < 2 3 (E) b > 2 3 7. If x 2 < 4, then (A) x > 2 (B) x < 2 (C) x > 2 (D) 2 <...

Ngày tải lên: 22/07/2014, 11:20

... B 20 . A 21 . E 22 . D 23 . A 24 . B 25 . C 26 . E 27 . B 28 . D 29 . C 30. A 31. B 32. D 33. E 34. C 35. B 36. A 37. D 38. E 39. C 40 . D 41 . B 42 . A 43 . E 44 . E 45 . A 46 . B 47 . D 48 . E 49 . D 50. B MULTIPLE-CHOICE ... O A O B O C O D O E 41 O A O B O C O D O E 42 O A O B O C O D O E 43 O A O B O C O D O E 44 O A O B O C O D O E 45 O A O B O C O D O E 46...

Ngày tải lên: 22/07/2014, 11:20

... $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 0 025 = == . %.%. 4. (D) 1 4 1 4 100 1 4 1 100 1 40 0 % ... tank. 2 3 1 4 83 12 5 12 5 12 10 5 120 24 − − == = = = x x x (answer) 7. xy x xyy xy xy xy −− − () = = = = 2 22 2 40 60 2 220 10...

Ngày tải lên: 22/07/2014, 11:20

... x yields the equation y x = − + 2 4 2 : f xx x x − () = − () − () +=− ()       += − + 2 2 2 22 4 2 2 8 2 2 2 2 ,, o r − + x 2 4 2 The graph of y x = − 2 4 is a downward opening parabola ... far is the point (–3, 4) from the origin? (A) 2 (B) 2. 5 (C) 42 (D) 43 (E) 5 16. The product of 345 6 and 789 is exactly (A) 27 26787 (B) 27 26785 (C) 27 2678...

Ngày tải lên: 22/07/2014, 11:20

... + (1.7 + 4. 9 + 2. 2) = 22 .8. The number of these units that were standard models = (8.5 + 4. 9) = 13 .4. To answer the question, divide 13 .4 by 22 .8 (round off the quotient): 22 .8 ÷ 13 .4 ≈ .59, ... (2, 0): yxb b b = () +=− = − + = − − 02 20 1 02 2 (slope ) The equation for the line is y = –x + 2. For the pairs ( 2, –1) and (2, 1): yxb b b = () += =+ = −− −− 11 22 1 2 1...

Ngày tải lên: 22/07/2014, 11:20

... pairs: 48 000 48 000 1 48 000 12 000 48 000 2 4 2 2 , , () , , , () == == 88 000 4 12 000 3 000 48 000 4 48 000 16 30 2 , , , , () , , = ===000 Retest 1. The correct answer is 4 32. First, find r: 27 2 27 2 36 6 31 2 2 ×= ×= = = − r r r r () To ... a ()()() ()() 22 3 24 22 6 34 4 2 +=+ + +− =+ +++− = +44 6 34 76 2 2 aa a aa +++− =++ 4. (D) Substitute f(x) fo...

Ngày tải lên: 22/07/2014, 11:20

... + x 2 + x 2 + x 3 = (A) 2 (B) –1 (C) 0 (D) 1 (E) 2 5. What integer is equal to 44 32 32 + ? 1. ab bc ac bc 2 2 2 2 ÷ = (A) 1 a (B) 1 b (C) b a (D) c b (E) 1 2. 4 n + 4 n + 4 n + 4 n ... geometric sequence are 2 and 20 48 , respectively. To find the value of the fourth term, first apply the standard equation to determine r : Solution: 2 2 048 2 2 048 20...

Ngày tải lên: 22/07/2014, 11:20

... = ()() = () = 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 4 3 Therefore, s 2 4 must equal 16 s 2 = 64 s = 8 Perimeter ... 1 2 · 6 · 8 = 24 . Using the hypotenuse as base and the altitude to the hypotenuse will give the same area. 1 2 10 24 5 24 48 1 2 10 4 8 24 ⋅⋅ = = =...

Ngày tải lên: 22/07/2014, 11:20

... 2, and x +4. xx x xx x xx x ++ + ++ ++ 24 4 22 41 6 14 2 725 4 = () = = == − −−,,==−3 2. (B) Represent the first two sides as 4x and 3x, then the third side is 7x – 20 . 47 64 14 20 64 14 84 6 xx x x x x +3 ... multiply. 9 722 44 8 120 15 8 3 24 xx x x x + = = = = − The original fraction is 8 24 . 3. (C) No. of Percent Amount of Quarts · Alcohol = Alcohol Origi...

Ngày tải lên: 22/07/2014, 11:20

... (D) 65 2 4 2 xy x xy x ++ − == == 64 2 24 2 22 2 2 xxy x xy x xy x xy x +5y + ++ −− () 2. (D) 33 3 3 cd cd cd cd + + + + == () 3. (B) 23 10 5 10 2 aa aa+ == 4. (A) xx +4+ 3 6 + = 7 6 5. (C) 310 47 41 0 30 ... every term by t 2 2 . 4 2 + t Exercise 5 1. (A) (a + b) (a – b) = a 2 – b 2 1 3 1 4 1 12 2 2             = = ab ab − − 2 2 2. (D)...

Ngày tải lên: 22/07/2014, 11:20