SAT math essentials part 6 pptx

... 4 2 ϭ c 2 9 ϩ 16 ϭ c 2 25 ϭ c 2 ͙25 ෆ ϭ ͙c 2 ෆ 5 ϭ c Example a 2 ϩ b 2 ϭ c 2 a 2 ϩ 6 2 ϭ 12 2 a 2 ϩ 36 ϭ 144 a 2 ϩ 36 Ϫ 36 ϭ 144 Ϫ 36 a 2 ϭ 108 ͙a 2 ෆ ϭ ͙108 ෆ a ϭ ͙108 ෆ a 12 6 4 c 3 –GEOMETRY ... ͙11 ෆ b. 8 c. 65 ෆ d. 11 e. 65 Answer c. Use the Pythagorean theorem: a 2 ϩ b 2 ϭ c 2 ,where a ϭ 7 and b ϭ 4. a 2 ϩ b 2 ϭ c 2 7 2 ϩ 4 2 ϭ c 2 49 ϩ 16 ϭ c 2 65 ϭ c 2 65 ෆ ϭ ͙c 2 ෆ 6...

Ngày tải lên: 22/07/2014, 10:22

... 1– 79 1.abcde 2.abcde 3.abcde 4.abcde 5.abcde 6. abcde 7.abcde 8.abcde 9.abcde 10.abcde 11.abcde 12.abcde 13.abcde 14.abcde 15.abcde 16. abcde 17.abcde 18.abcde 19.abcde 20.abcde 21.abcde 22.abcde 23.abcde 24.abcde 25.abcde 26. abcde 27.abcde 28.abcde 29.abcde 30.abcde 31.abcde 32.abcde 33.abcde 34.abcde 35.abcde

Ngày tải lên: 22/07/2014, 10:22

... practice essay, get more prompts from resources such as Acing the SAT 20 06 (LearningExpress, 20 06) or 11 Practice Tests for the New SAT (Princeton Review, 2004).  Planning Your Essay Planning takes ... Here’s an idea of how long to spend on each step of the writing process: Planning = 4 6 minutes Drafting = 14– 16 minutes Proofreading (Editing) = 3–5 minutes Total: 25 minutes The ac...

Ngày tải lên: 22/07/2014, 10:22

... ᎏ 0 9 – – (– 0 6) ᎏ = ᎏ 6 9 ᎏ = ᎏ 2 3 ᎏ . The equation of the line that has a slope of ᎏ 2 3 ᎏ and a y-intercept of 6 is y = ᎏ 2 3 ᎏ x – 6. When x = 6, y is equal to ᎏ 2 3 ᎏ ( 6) – 6 = –4 – 6 = –10; ... the line. The midpoint of the line with endpoints at (6, 0) and (6, 6) is ( ᎏ 6+ 2 6 ᎏ , ᎏ 0+ 2 6 ᎏ ) = ( ᎏ 1 2 2 ᎏ ,– ᎏ 6 2 ᎏ ) = (6, –3). 7. a. The number of yellow m...

Ngày tải lên: 22/07/2014, 10:22

... 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 • 9...

Ngày tải lên: 22/07/2014, 10:22

... 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 • 9...

Ngày tải lên: 22/07/2014, 10:22

... needs. –PROBLEM SOLVING– 1 56 Now solve by using 60 as the LCD for 30 and 20: ᎏ 3 1 0 ᎏ x ϩ ᎏ 2 1 0 ᎏ x ϭ 1 ᎏ 6 2 0 ᎏ x ϩ ᎏ 6 3 0 ᎏ x ϭ 1 ᎏ 6 5 0 ᎏ x ϭ 1 ᎏ 6 5 0 ᎏ x ϫ 60 ϭ 1 ϫ 60 5x ϭ 60 x ϭ 12 Thus, it ... there are 6 parts red paint, 4 parts green paint, and 2 parts yellow paint. Now we must first determine how many total parts there are in the ratio: 6 parts red ϩ 4 part...

Ngày tải lên: 22/07/2014, 10:22

... solve: ᎏ 0 1 . 0 2 0 5 ᎏ ϫ x ϭ 16 ᎏ 0 1 .2 0 5 0 x ᎏ ϭ 16 ᎏ 0 1 .2 0 5 0 x ᎏ ϫ 100 ϭ 16 ϫ 100 0.25x ϭ 1 ,60 0 ᎏ 0. x 25 ᎏ ϭ ᎏ 1 0 ,6 .2 0 5 0 ᎏ x ϭ 6, 400 Answer: 0.25% of 6, 400 is 16. ■ finding what percentage ... of its endpoints to find its length: B ෆ C ෆ ϭ |Ϫ3 Ϫ 3| B ෆ C ෆ ϭ | 6| B ෆ C ෆ ϭ 6 Practice Question A B C (Ϫ2,7) (Ϫ2, 6) (5, 6) A B C (Ϫ3,3) (Ϫ3,Ϫ2) (3,Ϫ2) –GEOMETRY R...

Ngày tải lên: 22/07/2014, 10:22

... ᎏ 36 x 0 ᎏ , with x being the degree meas- ure of the central angle: ᎏ π 3 r 6 2 0 x ᎏ . Example Given x ϭ 120 and r ϭ 9, find the area of the sector: A ϭ ᎏ π 3 r 6 2 0 x ᎏ A ϭ ᎏ π(9 2 3 ) 6 ( 0 120) ᎏ A ... another angle is 30°, then the third angle must be 60 °. The triangle is therefore a 30 -60 -90 triangle. In a 30 -60 -90 triangle, the leg opposite the 60 ° angle is ͙3 ෆ ϫ the...

Ngày tải lên: 22/07/2014, 10:22