The gre anlytycal writting section 5 ppt

... therefore, ͙ 25 ෆ = 5 Since 25 is the square of 5, we also know that 5 is the square root of 25. – THE GRE QUANTITATIVE SECTION 163 ■ To simplify a square root radical, write the radicand as the product ... that the number 3 is the square root of the number 9. The symbol for square root is ͙ ෆ and is called the radical. The number inside of the radical is c...

Ngày tải lên: 07/08/2014, 13:21

... is a right angle A B C – THE GRE QUANTITATIVE SECTION 144 T his chapter will help you prepare for the Quantitative section of the GRE. The Quantitative sec- tion of the GRE contains 28 total questions: ■ 14 ... you to the correct answer, complex. 14. b. The first unit of the sentence defines the word metacognition. The second unit restates the definition, as cued b...

Ngày tải lên: 07/08/2014, 13:21

... 30°. b. 60°. c. 75 . d. 90°. e. 120°. 14. If y = 3x and z = 2y, then in terms of x, x + y + z = a. 10x. b. 9x. c. 8x. d. 6x. e. 5x. A BC D P x° y° – THE GRE QUANTITATIVE SECTION 149 15. The rectangular ... 0 xy 2 Ͻ 0 xy 2 R V S T U 4 3 Q R S P V T The length of the sides in squares PQRV and VRST is 6. – THE GRE QUANTITATIVE SECTION 148 The Quantitative section covers...

Ngày tải lên: 07/08/2014, 13:21

... Compare .5 and .0 05 Line up decimal points and add zeroes: .50 0 .0 05 Then ignore the decimal point and ask, which is bigger: 50 0 or 5? 50 0 is definitely bigger than 5, so .5 is larger than .0 05 1 T H O U S A N D S 2 H U N D R E D S 6 T E N S 8 O N E S 3 T E N T H S 4 H U N D R E D T H S 5 T H O U S A N D T H S 7 T E N ... d – THE GRE QUANTITATIVE SECTION 157 For exa...

Ngày tải lên: 07/08/2014, 13:21

... inequality: –10 + 5 Ͻ –5y – 5 + 5 Ͻ 15 + 5 5 Ͻ –5y Ͻ 20 ■ Divide each term by 5, changing the direction of both inequality symbols: ᎏ – – 5 5 ᎏ Ͻ ᎏ – – 5 5 y ᎏ Ͻ ᎏ – 20 5 ᎏ = 1 Ͼ y Ͼ –4 ■ The solution ... that has the form c Ͻ ax + b Ͻ d, isolate the letter by performing the same operation on each member of the equation. Example: If –10 Ͻ –5y – 5 Ͻ 15, find y. ■ A...

Ngày tải lên: 07/08/2014, 13:21

... using the rule: a 2 – b 2 = (a + b)(a – b) and x 2 – 25 = (x + 5) (x – 5) 5x – 10y + 20 ᎏᎏ 5 – THE GRE QUANTITATIVE SECTION 169 ■ To simplify a square root radical, write the radicand as the product ... all the variables on one side and all the numbers on the other. 4. The final step often is to divide each side by the coefficient, leaving the variable equal to a n...

Ngày tải lên: 07/08/2014, 13:21

... inequality: –10 + 5 Ͻ –5y – 5 + 5 Ͻ 15 + 5 5 Ͻ –5y Ͻ 20 ■ Divide each term by 5, changing the direction of both inequality symbols: ᎏ – – 5 5 ᎏ Ͻ ᎏ – – 5 5 y ᎏ Ͻ ᎏ – 20 5 ᎏ = 1 Ͼ y Ͼ –4 ■ The solution ... that x – 3 = 0. x + 5 ϭ 0 x – 3 ϭ 0 x + 5 – 5 ϭ 0 – 5 or x – 3 + 3 ϭ 0 + 3 x ϭ 5 x ϭ 3 Thus, the possible values of x are 5 and 3. – THE GRE QUANTITATIVE...

Ngày tải lên: 07/08/2014, 13:21

... m∠3 = 180° 3 2 1 – THE GRE QUANTITATIVE SECTION 184 Example: mЄ1 = mЄ3 + m 5 mЄ4 = mЄ2 + m 5 mЄ6 = mЄ3 + mЄ2 ■ The sum of the exterior angles of a triangle equal to 360 degrees. Triangles More ... 180. Thus, the equation is x + x + 10 = 180. Solve for x:2x + 10 = 180 –10 –10 2x = 170 ᎏ 2 2 x ᎏ = ᎏ 17 2 0 ᎏ x = 85 Therefore, mЄx = 85 and the obtuse angle is equal to 180 – 85...

Ngày tải lên: 07/08/2014, 13:21

... leg opposite the 30-degree angle.) ■ The leg opposite the 60-degree angle is 3 times the length of the other leg. 10͙2 ෆ ᎏ 2 ͙2 ෆ ᎏ 2 10 x x ͙2 ෆ ᎏ 2 45 45 – THE GRE QUANTITATIVE SECTION 188 ■ In ... with the other angles measuring 30 and 60 degrees: ■ The leg opposite the 30-degree angle is half the length of the hypotenuse. (And, therefore, the hypotenuse is...

Ngày tải lên: 07/08/2014, 13:21