gre math review phần 1 pdf

... CONTENTS 1. ARITHMETIC 1. 1 Integers 6 1. 2 Fractions 7 1. 3 Decimals 8 1. 4 Exponents and Square Roots 10 1. 5 Ordering and the Real Number Line 11 1. 6 Percent 12 1. 7 Ratio 13 1. 8 Absolute Value 13 ARITHMETIC ... = 81; the “4” is called an exponent (or power). The exponent tells you how many factors are in the product. For example, 2 22222 32 10 10 10 10 10 10 10...

Ngày tải lên: 24/07/2014, 13:21

... (percent) Flight Problems 20.0% 22 .1% Baggage 18 .3 21. 8 Customer service 13 .1 11. 3 Oversales of seats 10 .5 11 .8 Refund problems 10 .1 8 .1 Fares 6.4 6.0 Reservations and ticketing ... mode = 1, range = 4, standard deviation  1. 4 5. mean = 19 .15 , median = 19 , mode = 19 , range = 6 6. 12 0 7. 24 8. 288 9. 210 10 . (a) 336 (b) 56...

Ngày tải lên: 24/07/2014, 13:21

... 4 .1. 51 For more material and information, please visit Tai Lieu Du Hoc at www.tailieuduhoc.org x x -10 ()x -10 2 5 − 5 25 8 − 2 4 8 − 2 4 10 0 0 14 4 16 15 ... integer n greater than 1, the symbol n!, pronounced “n factorial,” is defined as the product of all positive integers less than or equal to n. Also, 0! = 1! = 1. Therefore, 0! = 1...

Ngày tải lên: 24/07/2014, 13:21

... ),25 210 = which is approximately equal to 32.7. 42 For more material and information, please visit Tai Lieu Du Hoc at www.tailieuduhoc.org 10 . 83 11 . 15 to 8 12 . $220 13 . $3 14 . ... 12 . $220 13 . $3 14 . $800 at 10 %; $2,200 at 8% 15 . 48 mph and 56 mph 16 . $10 8 17 . Beth is 9; Jane is 24. 18 . (a) (,)-20 (c) 21 (b) 13 85 + (d) slope =...

Ngày tải lên: 24/07/2014, 13:21

... would do 1 x of the job in 1 hour. Therefore, 1 3 1 2 1 2 6 3 6 1 5 6 1 6 5 += += = = x x x x Thus, working together, the machines take only 6 5 hours, or 1 hour and 12 minutes, ... Therefore, the solutions to -+3 517 x are all real numbers greater than or equal to - 4. Another example follows: 49 11 5 4 9 55 11 4469 46 4 4 11 1 2 x x x x x + &g...

Ngày tải lên: 24/07/2014, 13:21

... (59) 3 (59) 2 = (59) 6 (f) ( 1) 87 = 1 (l) -<- 25 4 11 . Perform the indicated operations. (a) 5 327 + (b) 63 016 1 6 (c) 300 12 1 616  (d) 52 9 016 16 - 12 . Express the following ... j), (l) 11 . (a) 8 3 (c) 5 (b) 6 5 (d) -2 10 12 . (a) 0 .15 , 3 20 (c) 1. 31, 13 1 10 0 (b) 0.273, 273 10 00, (d) 0.0002, 1 5000, 17 For more mater...

Ngày tải lên: 24/07/2014, 13:21

... điểm Q: V DSQ = 15 V; I DQ = 3,5 mA Thay vào DCLL: R d +R s = (V DD – V DSQ ) / I DQ = (30 – 15 ) / 3,5 = 4,3 KΩ Từ đặc tuyến VA: V GSQ = -1 V ⇒ R s = - V DSQ / I DQ = 1V / 3,5 mA = 286 ... trình phân cực: v GS = SDDD RiV RR R − ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛ + 21 1 = V GG – i D R s trong đó: V GG = DD V RR R ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛ + 21 1 : Điện áp cung cấp cho cực cổng Nhận xét: R s :...

Ngày tải lên: 20/08/2012, 11:16

... (4-23). 11 2 t tr tb =29,5 0 C thì γ tr tb =1. 146 kg/m 2 t r =34 0 C thì γ l =1. 13 kg/m 2 . *Xác định vị trí mặt phẳng trung hoà .93,7 13 ,1 1 81, 1 . 20 10 1 10 1 22 2 1 1 m F F H h r ng = ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ + = ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛ + = γ γ ... chắn. 11 0 t ng = 22 0 C, ta có: γ ng = 1, 173 (kg/m 3 ) t r = 30 0 C, ta có: γ r = 1, 1 41 (kg/m 3 ) Thay vào công thứ...

Ngày tải lên: 23/08/2012, 15:54

Ngày tải lên: 24/09/2012, 10:40