New SAT Math Workbook Episode 2 part 1 pptx

... difference of their squares is 12 0 ? (A) (n + 1) 2 – n 2 = 12 0 (B) n 2 – (n + 1) 2 = 12 0 (C) n 2 – (n + 2) 2 = 12 0 (D) (n + 2) 2 – n 2 = 12 0 (E) [(n + 2) – n] 2 = 12 0 3. Find the average of ... have xy xy 22 22 40 10 0 60 ++= += 9. (D) 11 11 1 1 1 2 1 4 22 xy xy xy +             =          −−    = = 11 1 8 11 22...

Ngày tải lên: 22/07/2014, 11:20

... Answers 1. B 2. B 3. C 4. D 5. B 1. D 2. C 3. D 4. B 5. C 1. D 2. C 3. A 4. A 5. E 1. D 2. B 3. A 4. B 5. B 1. A 2. B 3. E 4. E 5. C 1. B 2. E 3. A 4. E 5. E CHECK YOUR WRITING SKILLS:VERBS, PAGE 1 72 1. ... party as a guest rather than as a maid was a new experience for her. Improved: By attending the party as a guest rather than as a maid, she enjoyed a new experience. I...

Ngày tải lên: 22/07/2014, 11:20

... tank. 2 3 1 4 83 12 5 12 5 12 10 5 12 0 24 − − == = = = x x x (answer) 7. xy x xyy xy xy xy −− − () = = = = 2 22 2 40 60 2 220 10 + (answer) 8. 36 (2. 5) = 90 (answer) 9. 1 4 1 3 1 12 1 3 1 4 1 12 ⋅ = ⋅ = 0 ... C Section 1 9. (B) 1 2 + 1 2 = r 2 2 = r 2 Area = πr 2 = 2 10 . (E) Angle BCA = Angle BAC = 80° There are 20 ° left for angle...

Ngày tải lên: 22/07/2014, 11:20

... triangle ABC is (A) 8 (B) 25 + (C) 22 5+ (D) 21 0+ (E) 12 14 . If a is not 0 or 1, a fraction equivalent to 1 2 2 a a − is (A) 1 22 a − (B) 2 2a − (C) 1 2a − (D) 1 a (E) 2 2a 1 15. At 3:30 P.M. the ... completely. Section 1 1. abcde 8. abcde 15 . abcde 22 . abcde 2. abcde 9. abcde 16 . abcde 23 . abcde 3. abcde 10 . abcde 17 . abcde 24 . abcde 4. abcde 11 ....

Ngày tải lên: 22/07/2014, 11:20

... (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 2 12 0 () () ) () (slope The equation ... 8.5 + 1. 9) + (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...

Ngày tải lên: 22/07/2014, 11:20

... its base, − () = − − 1 2 32 5 . 5. (E) Substitute 1 1x + for x, then simplify: f x x x x x x x x 1 1 1 1 11 1 1 1 1 1 1 11 1 + () = + = + = = + + + + + ++ + () 11 11 1 2+ + = + +()x x x Additional ... contains two members: 2 and 19 . 4. (A) Through 10 , the multiples of 5 2 , or 2 1 2 , are 2 1 2 , 5, 2 1 2 , and 10 . Through 10 , the mul...

Ngày tải lên: 22/07/2014, 11:20

... = − = − − 22 5 2 5 2 25 2 2 f ()()( )− = − = − = − − 11 5 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, ... (zero) equals 1: a 0 = 1 [a ≠ 0] Example: (2 3 ) 2 · 4 –3 = (A) 16 (B) 1 (C) 2 3 (D) 1 2 (E) 1 8 Solution: The correct answer is (B). (2 3 ) 2 ·...

Ngày tải lên: 22/07/2014, 11:20

... (0, 0). Geometry 22 9 www.petersons.com Retest 1. (C) Area of trapezoid = 1 2 12 hb b+ () Area = ⋅ () = 1 2 310 12 33+ 2. (A) Area of circle = πr 2 = 16 π Therefore, r 2 = 16 or r = 4 Circumference ... 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. (...

Ngày tải lên: 22/07/2014, 11:20

... = xx yy 21 2 21 2 − + ()() - The distance between (–3, 2) and (5, 1) is −− ++3+935 8 64 73 2 2 22     ()     = () () = =2- -1 - B. The midpoint of a line segment = xxyy 12 1 2 22 ++ ,       Since ... = ()() = () = 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 The...

Ngày tải lên: 22/07/2014, 11:20

... quarters in cents 10 400 25 25 + - 00 15 15 0 10 x x = = 4. (D) No of Percent Amount of Quarts · Alcohol = Alcohol Original 18 32 576 Added x 0 0 New 18 + x 12 216 + 12 x 576 21 6 12 360 12 30 = = = + ... in6years 3 62 6 3 6 21 2 6 xx xx x ++ ++ = () = = 10 . (B) Letamount invested at 4% amount invest x x = =2eed at 5% 04 05 2 210 xx+ () = Multiply by 10 0 to elimina...

Ngày tải lên: 22/07/2014, 11:20