Sat math essentials 9 pptx

... ϭ ᎏ 4a 2 ϩ a 2 – 12 1 a 6 ϩ 9 ᎏ undefined. 55˚ CB A O MATH PRETEST– 21 8. The expression ( ᎏ a b 3 2 ᎏ )( ᎏ a b – – 3 2 ᎏ ) ϭ ? a. 0 b. 1 c. ( ᎏ a b – – 9 4 ᎏ ) d. ( ᎏ a b 9 4 ᎏ ) e. b 9 9. If triangle ABC ... of x? a. 4 b. 6.4 c. 24 d. 40 e. 64 A E B D C x 12 MATH PRETEST– 19 19. Kiki is climbing a mountain. His elevation at the start of today is 90 0 feet. After 12 hours, Kiki...

Ngày tải lên: 07/08/2014, 22:20

... calcula- tor sparingly. It will not help you much on the SAT. Fill in Answer Ovals Carefully and Completely The Math sections of the SAT are scored by computer. All the computer cares about is ... 6 d. 9 e. 18 Answer e. 6n means 6 ϫ n, so 6n ϭ 6 ϫ (8 Ϫ 5) ϭ 6 ϫ 3 ϭ 18. Like Terms A variable is a letter that represents an unknown number. Variables are used in equations, formulas, and...

Ngày tải lên: 07/08/2014, 22:20

... two expressions can be set equal to each other: 3 plumbers ϫ 6 days ϭ 9 plumbers ϫ x days 3 ϫ 6 ϭ 9x 18 ϭ 9x ᎏ 1 9 8 ᎏ ϭ ᎏ 9 9 x ᎏ 2 ϭ x Thus, it would take nine plumbers only two days to install ... Ϫ 12! 5)!5! ᎏ 12 C 5 ϭ ᎏ 7 1 ! 2 5 ! ! ᎏ 12 C 5 ϭ 12 C 5 ϭ 12 C 5 ϭ ᎏ 95 1 , 2 0 0 40 ᎏ 12 C 5 ϭ 792 Therefore, there are 792 different combinations of 12 people to fill five memberships....

Ngày tải lên: 22/07/2014, 10:22

... need to know for the SAT. Throughout the chapter are sample questions in the style of SAT questions. Each sample SAT question is followed by an explanation of the correct answer. 7 95 surface area ... greater than 90 °. Therefore, if 90 ° ϩ 90 ° ϭ 180°, then the sum of m∠A and m∠B must be greater than 180°. Complementary Angles Two angles are complementary if the sum of their measur...

Ngày tải lên: 22/07/2014, 10:22

... multiplication? a. 7( ᎏ 8 9 ᎏ ϩ ᎏ 1 3 0 ᎏ ) ϭ (7 ϫ ᎏ 8 9 ᎏ ) ϩ (7 ϫ ᎏ 1 3 0 ᎏ ) b. (4.5 ϫ 0.32) ϫ 9 ϭ 9 ϫ (4.5 ϫ 0.32) c. 12(0.65 ϫ 9. 3) ϭ (12 ϫ 0.65) ϫ (12 ϫ 9. 3) d. (9. 04 ϫ 1.7) ϫ 2.2 ϭ 9. 04 ϫ (1.7 ϫ 2.2) e. ... ϫ 1 3 ᎏ ϭ ᎏ 1 9 ᎏ Ϫ5 Ϫ3 ϭϪ ᎏ 5 1 3 ᎏ ϭϪ ᎏ 5 ϫ 1 5 ϫ 5 ᎏ ϭϪ ᎏ 1 1 25 ᎏ Practice Question Which of the following is equivalent to Ϫ6 Ϫ4 ? a. Ϫ1, 296 b. Ϫ ᎏ 1,2 6 96...

Ngày tải lên: 12/08/2014, 00:22

... 2 1 2 3 4 5 6 7 8 9 • 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • 1 2 3 4 5 6 7 8 9 • 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • 1 2 3 4 5 6 7 8 9 • 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • 1 2 3 4 5 6 7 8 9 • 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 •...

Ngày tải lên: 02/11/2013, 18:20

... 2 1 2 3 4 5 6 7 8 9 • 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • 1 2 3 4 5 6 7 8 9 • 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • 1 2 3 4 5 6 7 8 9 • 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • 1 2 3 4 5 6 7 8 9 • 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 •...

Ngày tải lên: 02/11/2013, 18:20

... 2 1 2 3 4 5 6 7 8 9 • 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • 1 2 3 4 5 6 7 8 9 • 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • 1 2 3 4 5 6 7 8 9 • 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • 1 2 3 4 5 6 7 8 9 • 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 • / 1 2 3 4 5 6 7 8 9 0 •...

Ngày tải lên: 02/11/2013, 18:20

... by 9. Start with 498 , then try 496 , and so forth until you find the highest even number that works: 498 : 4 + 9 + 8 = 21 496 : 4 + 9 + 6 = 19 494 : 4 + 9 + 4 = 17 492 : 4 + 9 + 2 = 15 490 : 4 + 9 ... For example, 0.44 = 44% 0.125 = 12.5% 9. 99 = 99 9% When a conversion results in a leading zero, you can drop it: 0.02 = 02% = 2% 0.06 = 06% = 6% 0. 09 = 09% = 9% Be care...

Ngày tải lên: 28/03/2014, 10:20