math geometry perimeter 2

SAT math essentials part 2 pps

SAT math essentials part 2 pps
... The area of circle A is 6 .25 π in2 If the radius of the circle is doubled, what is the new area of circle A? a 5π in2 b 12. 5π in2 c 25 π in2 d 39.0 625 π in2 e 156 .25 π in2 David draws a line that ... d, plus 22 5, divided by 4, is equal to the average weight of the four dogs, 70 pounds: d ϩ 22 5 ᎏᎏ ϭ 70 d ϩ 22 5 ϭ 28 0 d ϭ 55 pounds 21 26 0 The weight Kerry can lift now, 3 12 pounds, is 20 % more, ... numbers? 22 MATH PRETEST – a The distance formula is equal to ෆ1 )2 ϩ (ෆෆ ͙((x2 – xෆy2 – y1 )2) Substituting the endpoints (–4,1) and (1,13), we find that ෆ1 )2 ϩ (ෆෆ ͙((–4 – ෆ1 – 13 )2) ϭ ෆϩ (– 12 ෆ44...
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New SAT Math Workbook Episode 2 part 9 pdf

New SAT Math Workbook Episode 2 part 9 pdf
... (A) 20 % = ⋅ 120 0 = $24 0 depreciation first year = x 20 325 325 20 x = 325 325 x= ⋅ = =4 =4 20 80 80 16 $ 120 0 – $24 0 = $96 0 value after year ⋅ 96 0 = $1 92 depreciation second year $96 0 – $1 92 = ... ⋅ 12 = 6π 2 sides of square in perimeter = 24 Total perimeter of park = 16 + 6π + 24 = 40 + π Multiply every term by a 2a − 2 16 (A) $ 320 is 125 % of his former salary 320 = 1 .25 x 320 00 = 125 ... Original Added New 10 gallons is = Amount of acid 3 − of the tank 8−3 − = = 12 12 x = 10 12 x = 120 (answer) x = 24 ( x − y )2 = x − xy + y2 40 = 60 − xy xy = 20 xy = 10 (answer) 36 (2. 5) = 90 (answer)...
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New SAT Math Workbook Episode 2 part 8 pps

New SAT Math Workbook Episode 2 part 8 pps
... < 23 Which of the following is the product of 4 327 and 546? (A) 23 625 41 (B) 23 625 42 (C) 23 625 43 (D) 23 625 46 (E) 23 625 48 www.petersons.com 323 324 Chapter 17 24 If a classroom contains 20 to 24 ... the origin? (A) (B) 2. 5 (C) (D) (E) 16 The product of 3456 and 789 is exactly (A) 27 26 787 (B) 27 26 785 (C) 27 26 781 (D) 27 26 784 (E) 27 26 786 17 Susan got up one morning at 7: 42 A.M and went to bed ... (E) (B) (C) (D) 50 100 130 12 25 www.petersons.com 2+ 2+ 2 + 10 12 14 If a is not or 1, a fraction equivalent to (A) (A) (B) (C) (D) (E) (E) 2a − 2 a 2 a 2 a 2a − 1 a 2 is a 15 At 3:30 P.M the...
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New SAT Math Workbook Episode 2 part 7 doc

New SAT Math Workbook Episode 2 part 7 doc
... average time for race to the average time for race 2? (A) 1 :2 (B) 2: 3 (C) 1:1 (D) 3 :2 (E) 2: 1 www.petersons.com 29 7 29 8 Chapter 16 PROBABILITY The new SAT includes simple questions involving probability, ... (A) (B) (C) 2 (D) 2 (E) If the radius of O1 is r and the radius of O2 is twice as long, what is the area of the shaded region? (A) πr2 (B) πr2 (C) πr2 (D) 2 r2 (E) 3πr2 Two planes depart at the ... + 1.9) + (1 .7 + 4.9 + 2. 2) = 22 .8 The number of these units that were standard models = (8.5 + 4.9) = 13.4 To answer the question, divide 13.4 by 22 .8 (round off the quotient): 22 .8 ÷ 13.4 ≈...
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New SAT Math Workbook Episode 2 part 6 potx

New SAT Math Workbook Episode 2 part 6 potx
... 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 not for f(3) = 96 Additional Geometry ... correct answer is 4 32 First, find r: × r (3−1) = 72 × r = 72 r = 36 r =6 48, 000 = 48, 000 (1 )2 48, 000 48, 000 = 12, 000 12, 000 = = (2) 2 48, 000 48, 000 3, 000 = = = 3, 000 16 (4) To find the ... the degree measure of minor arc DE ? (A) 40 (B) 110 (C) 120 (D) 130 (E) 22 0 (C) (D) (E) 2 2 2π 3π 2 www.petersons.com 28 1 28 2 Chapter 16 In the figure below, a circle with center O is tangent...
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New SAT Math Workbook Episode 2 part 5 pot

New SAT Math Workbook Episode 2 part 5 pot
... 16,000 2 =− 25 −1 f (−1) = (−1) (5 1 ) = = − 5 f(0) = (0) (50 ) = (0)(1) = f (2) = (2) ( 52 ) = (2) ( 25 ) = 50 The range of f(x) = y x x = x y4 y x = x2 y2 x is the set { − 25 , − , 5 x 0, 50 } Only ... a0 = [a ≠ 0] Example: (23 )2 · 4–3 = (A) 16 (B) (C) (D) (E) Solution: The correct answer is (B) (23 )2 · 4–3 = 2( 2)(3) · = 26 = 26 = 4 26 www.petersons.com 25 1 25 2 Chapter 15 Exercise Work out each ... (C) (D) (E) 2 If f(a) = a–3 – a 2 , then f ( ) = (A) –6 (B) (C) (D) (E) 18 If f(x) = x2 + 3x – 4, then f (2 + a) = (A) a2 + 7a + (B) 2a2 – 7a – 12 (C) a2 + 12a + (D) 6a2 + 3a + (E) a2 – a + www.petersons.com...
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New SAT Math Workbook Episode 2 part 4 docx

New SAT Math Workbook Episode 2 part 4 docx
... = 43 = 64 22 (C) V = πr2h = · 49 · 10 = 1 540 cubic inches Divide by 23 1 to find gallons (B) V = πr2h = 22 · · 14 = 396 cubic inches Divide by to find minutes (B) V = l · w · h = 10 · · = 320 ... = = 64 cubic inches Therefore it will require cubes (A) Change 16 inches to V=6·5·1 feet = 40 cubic feet when full · 40 = 25 www.petersons.com 25 0 125 = 128 64 The linear ratio is then : 25 = ... (E) x < 18 If x2 < 4, then (A) x > (B) x < (C) x > 2 (D) 2 < x < (E) 2 ≤ x ≤ 2 Solve for x: 6x + – 8x < 14 (A) x = (B) x = –6 (C) x > –6 (D) x < –6 (E) x > Solve for n: n + 4. 3 < 2. 7 (A) n >...
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New SAT Math Workbook Episode 2 part 3 pdf

New SAT Math Workbook Episode 2 part 3 pdf
... points = ( x2 − x1 )2 + ( y2 - y1 )2 The distance between ( 3, 2) and (5, –1) is  3 −  +  - ( -1)  =     2 (-8 )2 + (3 )2 = 64 + = 73 B The midpoint of a line segment =  x1 + x y1 + y2   ... inches and its height is 14 inches? 22 (Use π = ) (A) (B) (C) (D) (E) 25 40 480 768 30 0 (A) 14 (B) (C) 44 30 (D) 27 (E) 35 www.petersons.com 21 9 22 0 Chapter 13 10 SIMILAR POLYGONS A Corresponding ... are 25 0 and 128 If a dimension of the larger solid is 25 , find the corresponding side of the smaller solid (A) 12. 8 (B) 15 (C) 20 (D) 40 (E) cannot be determined www.petersons.com 22 1 22 2 Chapter...
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New SAT Math Workbook Episode 2 part 2 ppt

New SAT Math Workbook Episode 2 part 2 ppt
... 12 % of Sugar = 20 120 0 = ( 60 + x ) x+4 = 2x + 8 x + 32 = 10 x + 20 12 = x x=6 No of Quarts 60 x 60 + x (B) No of Pounds 24 0 x 24 0 – x · % of Alcohol = Amount of Sugar 720 5 (24 0 – x ) Notice ... 3.5x + 3.5(x + 6) = 28 7 = 6–x D 4x 2( 6 – x ) x = (6 − x ) Multiply by 10 to eliminate decimals x = 12 − x x = 12 35 x + 35 ( x + ) = 28 70 x =2 35 x + 35 x + 21 0 = 28 70 70 x = 26 60 x = 38 If he walked ... Added + 12 = = 21 + 28 (B) (A) Represent the original fraction by x 2x · Amount of Sugar 120 0 5(60 + x ) 120 0 = 300 + x 900 = x x = 180 Cross multiply The original denominator is 2x, or 12 % of...
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New SAT Math Workbook Episode 2 part 1 pptx

New SAT Math Workbook Episode 2 part 1 pptx
... squares is 12 0 ? (A) (n + 1 )2 – n2 = 12 0 (B) n2 – (n + 1 )2 = 12 0 (C) n2 – (n + 2) 2 = 12 0 (D) (n + 2) 2 – n2 = 12 0 (E) [(n + 2) – n ]2 = 12 0 If 2x – is an odd integer, find the next even integer (A) 2x – ... the original fraction Find the 10 (A) (B) (C) (D) (E) 10 12 14 16 original fraction (A) (B) (C) (D) (E) 10 15 12 20 15 25 www.petersons.com 17 9 18 0 Chapter 12 MIXTURE PROBLEMS There are two ... ac ac ⋅ = b 2 8b (A) www.petersons.com 16 7 16 8 Chapter 11 Exercise Exercise 1 (E) Multiply every term by 20 − 30 26 = 15 15 (C) Multiply every term by x2 = ax a x (C) = a2 − b2 12 Multiply every...
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gre math review phần 2 pot

gre math review phần 2 pot
... 93, 124 , 186, 3 72 2, 3, 31 19, 2, 37, 83, 29 (3)(3)(5)(13) 10 (a), (b), (d), (e), (f ), (h), ( j), (l) 11 (a) (b) 20 27 3 (b) 0 .27 3, 1,000 12 (a) 0.15, (c) (d) -2 10 (c) 1.31, 131 100 (d) 0.00 02, ... (6 – 4)( 2) (e) (–5)(–3) – 15 (b) (2 – 17) ÷ (f) ( 2) 4 (15 – 18)4 (c) (60 ÷ 12) – (–7 + 4) (g) (20 ÷ 5 )2 ( 2 + 6)3 (d) (3)4 – ( 2) 3 (h) (–85)(0) – (–17)(3) Evaluate: (a) (b)  -  27 (d)  ... 3.1 21 = 28 (c) ÷ = (i) - - 23 = 23 (d) < - (j) (e) < 1 > 17 (k) (59)3 (59) = (59) (f) (–1)87 = –1 (l) - 25 < - 11 Perform the indicated operations (a) + (b) (c) (d) 27 61 306 300  12 61 26 ...
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RealLife Math Phần 2 ppsx

RealLife Math Phần 2 ppsx
... Life Medical Net Pay A.Z Neuman - $24 8 -$58 -$ 120 -$800 - $20 0 -$160 $ $ $ $ $ -$ 62 -$ 72 -$4, 720 496 116 120 800 20 0 -$160 -$ 62 -$ 72 $2, 400 Government $1,7 32 Figure 2: Sample of payroll accounting ... for example, the list 2, 6, 12 The product of these three numbers is ϫ ϫ 12 ϭ 144 The geometric mean of 2, 6, and 12 is therefore 5 .24 148 because 5 .24 148 ϫ 5 .24 148 ϫ 5 .24 148 also equals 144 The ... S O N 0 74 19 93 16 14 2 18 4 3 1 19 18 5 19 1 20 0 15 2 1 1 1 2 2 1 1 1 1 0 0 0 3 13 14 2 16 3 0 0 0 0 0 0 0 0 2 16 3 0 11 46 Net Contribution (Revenue – OpExp.) –1 0 2 47 Capital Investments...
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