New SAT Math Workbook Episode 2 part 9 pdf

... 3 Added 4 0 0 New 10 3 6. 10 gallons is 2 3 1 4 − of the 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 + (answer) 8. ... TEST 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 B. 11. (B) 9 2 81 8 9...

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. ... = xx yy 21 2 21 2 − + ()() - The distance between (–3, 2) and (5, –1) is −− ++3 +93 5 8 64 73 2 2 22     ()     = () () = =2- -1 - B. The...

Ngày tải lên: 22/07/2014, 11:20

... .) 09 3= . Retest 1. (C) 28 24 2 42= ⋅= 450 425 2 2 02 318 39 2 9 2 42 2 02 92 3 32 =⋅= =⋅= =++ 2. (D) 1 2 180 1 2 36 5 3 5=⋅= 2 5 20 2 5 45 4 5 5 35 4 5 5 11 5 5 =⋅= −= 3. (A) axxxax xax26 122 3 22 ⋅= ... 2 3 2 2 ab d (A) 8 3 32 2 abc d (B) a cd6 2 (C) 2 2 ac bd (D) 6 2 cd a (E) 5 2 cd a 5. Divide 3 4 24 2 ac b by 6ac 2 (A) ac b 2 2 8 (B)...

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 ... origin? (A) 2 (B) 2. 5 (C) 42 (D) 43 (E) 5 16. The product of 3456 and 7 89 is exactly (A) 27 26787 (B) 27 26785 (C) 27 26781 (D) 27 26784 (E) 27 26786 17. Susan got...

Ngày tải lên: 22/07/2014, 11:20

... equation 2y = 9 ? (A) – 9 2 (B) – 2 9 (C) 0 (D) 9 2 (E) The slope is undefined. 2. In the xy-plane, what is the slope of a line that contains the points (–1,4) and (3,–6)? (A) − 5 2 (C) 2 (B) − 1 2 (D) ... (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...

Ngày tải lên: 22/07/2014, 11:20

... 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 · 4 2 x = 2. Exercise 6 1. (B) To determine ... both (t,h) pairs: (96 ) = 80 (2) – 16 (2) 2 = 160 – 64 = 96 (96 ) = 80(3) – 16(3) 2 = 24 0 – 144 = 96 Note that the equation in choice (C) holds for f (2) = 96 but...

Ngày tải lên: 22/07/2014, 11:20

... equations does the graph best represent? (A) x = (y – 2) 2 – 2 (B) x = (y + 2) 2 – 2 (C) x = –(y – 2) 2 – 2 (D) y = (x – 2) 2 + 2 (E) y = (x – 2) 2 – 2 3. In the xy-plane, which of the following ... − = − = − − 22 5 2 5 2 25 2 2 f ()()( )− = − = − = − − 115 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...

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 − ... 10 (A) b < 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

... twice as long, or 2x hours, to mow the lawn. Mr. Powell Mike 20 x + 20 2x =1 Multiply by 2x to clear fractions. 40 20 2 60 2 30 + = = = x x x minutes Chapter 12 188 www.petersons.com 9. Carol started ... (C) Michael Barry 2 6 2 1+ x = Multiply by 6x. 21 26 12 4 3 xx x x + = = = Retest 1. (B) Represent the integers as x, x + 2, and x + 4. 3410 21 4 7 29 xx x x x = () = =...

Ngày tải lên: 22/07/2014, 11:20

... their squares is 120 ? (A) (n + 1) 2 – n 2 = 120 (B) n 2 – (n + 1) 2 = 120 (C) n 2 – (n + 2) 2 = 120 (D) (n + 2) 2 – n 2 = 120 (E) [(n + 2) – n] 2 = 120 3. Find the average of four consecutive ... a b 4. (D) 4 3 2 2 2 abc d ab ⋅ Divide 2, a, and b. 2 36 22 c d a cd a ⋅= 5. (A) 3 4 1 6 24 22 ac bac ⋅ Divide 3, a, and c 2 . ac b ac b 2 2 2 2 4 1...

Ngày tải lên: 22/07/2014, 11:20