Number operation review 1 pps

... 19 6 ෆ ? a. 13 b. 14 c. 15 d. 16 e. 17 Answer b. 19 6 ෆ ϭ 14 because 14 ϫ 14 ϭ 19 6. Perfect Squares The square root of a number might not be a whole number. For example, there is not a whole number that ... Ϫ ᎏ 1, 2 6 96 ᎏ c. Ϫ ᎏ 1, 2 1 96 ᎏ d. ᎏ 1, 2 1 96 ᎏ e. 1, 296 Answer c. Ϫ6 Ϫ4 ϭϪ ᎏ 6 1 4 ᎏ ϭϪ ᎏ 6 ϫ 6 ϫ 1 6 ϫ 6 ᎏ ϭϪ ᎏ 1, 2 1 96 ᎏ  Rational Exponents R...

Ngày tải lên: 07/08/2014, 22:20

... a. b. c. d. e. Answer e.  43 71  +  62 52  =  4 + 63+ 2 7 + 51+ 2  =  10 5 12 3   10 5 12 3   24 6 35 2   − 21 2 1   11 11 4 4   7 8 8 7   43 71  +  62 52  = –NUMBERS AND OPERATIONS REVIEW 67  Equations To ... a 4 b 4   a 1 a 2 a 3 a 4  −  b 1 b 2 b 3 b 4  =  a 1 − b 1 a 2 − b 2 a 3 − b 3 a 4 − b 4   a 1 a 2 a 3 a 4  +  b 1 b 2 b 3...

Ngày tải lên: 07/08/2014, 22:20

... an angle (in this case, angle A). For example, if ∠D measures 10 0°, then m∠D ϭ 10 0°. 1 2 A C D B vertex ray #1 ray #2 –GEOMETRY REVIEW 99  Vocabulary It is essential in geometry to recognize ... an angle. 1. An angle can be named by the vertex when no other angles share the same vertex: ∠A. 2. An angle can be represented by a number or variable written across from the vertex: 1...

Ngày tải lên: 07/08/2014, 21:23

... zero. Examples | 1| ϭ 1 The absolute value of 1 is 1. The distance of 1 from zero on a number line is 1. |1| ϭ 1 The absolute value of 1 is 1. The distance of 1 from zero on a number line is 1. |Ϫ23| ... 1 as factors: 2, 3, 5, 7, 11 , 13 , 17 , 19 , 23 . . . ■ A composite number is a number that has more than two factors: 4, 6, 8, 9, 10 , 12 , 14 , 15 , 16...

Ngày tải lên: 07/08/2014, 22:20

... The number shown in the place value chart can also be expressed in expanded form: 3,759 .16 04 ϭ (3 ϫ 1, 000) ϩ (7 ϫ 10 0) ϩ (5 ϫ 10 ) ϩ (9 ϫ 1) ϩ (1 ϫ 0 .1) ϩ (6 ϫ 0. 01) ϩ (0 ϫ 0.0 01) ϩ (4 ϫ 0.00 01) Comparing ... Ϫ9? a. 17 ϩ 12 Ϫ (Ϫ4) Ϫ ( 10 ) b. 13 Ϫ (Ϫ7) Ϫ 36 Ϫ (Ϫ8) c. Ϫ8 ϫ (Ϫ2) Ϫ 14 ϩ ( 11 ) d. ( 10 ϫ 4) Ϫ (Ϫ5 ϫ 5) Ϫ 6 e. [Ϫ48 Ϭ ( Ϫ3)] Ϫ (28 Ϭ 4) Answer c. Answer choice a:...

Ngày tải lên: 07/08/2014, 22:20

... DECIMAL PERCENTAGE ᎏ 1 2 ᎏ 0.5 50% ᎏ 1 4 ᎏ 0.25 25% ᎏ 1 3 ᎏ 0.333 . . . 33.3 ෆ % ᎏ 2 3 ᎏ 0.666 . . . 66.6 ෆ % ᎏ 1 1 0 ᎏ 0 .1 10% ᎏ 1 8 ᎏ 0 .12 5 12 .5% ᎏ 1 6 ᎏ 0 .16 66 . . . 16 .6 ෆ % ᎏ 1 5 ᎏ 0.2 20% Practice ... three numbers in the set. If X > 17 , the median is 17 because the numbers would be ordered: X, 17 , 17 . If X < 17 , the median is still 17 because the...

Ngày tải lên: 07/08/2014, 22:20

... 11 ϭ 29 Ϫ 3x Move the variables to one side. 7x Ϫ 11 ϩ 3x ϭ 29 Ϫ 3x ϩ 3x Perform the same operation on both sides. 10 x Ϫ 11 ϭ 29 Now move the numbers to the other side. 10 x Ϫ 11 ϩ 11 ϭ 29 ϩ 11 ... solution for 7x Ϫ 11 ϭ 29 Ϫ 3x is x ϭ 4. To check that the solution is correct, substitute 4 for x in the equation: 7x Ϫ 11 ϭ 29 Ϫ 3x 7(4) Ϫ 11 ϭ 29 Ϫ 3(4) 28 Ϫ 11 ϭ 29 Ϫ 12 17 ϭ...

Ngày tải lên: 07/08/2014, 22:20

... factor: ᎏ 56a 5 7 ϩ a 21a ᎏ ᎏ 8a 5 a ϩ 1 3a ᎏ Subtract exponents when dividing. 8a 5 Ϫ 1 ϩ 3a 1 Ϫ 1 8a 4 ϩ 3a 0 A base with an exponent of 0 ϭ 1. 8a 4 ϩ 3 (1) 8a 4 ϩ 3 Therefore, the factors of 56a 5 ϩ 21a are 7a(8a 4 ϩ ... the denominator: ᎏ 6 x ᎏ Ϫ ᎏ 1 x 2 ᎏ ϭ ᎏ 6 x ϫ ϫ 2 2 ᎏ Ϫ ᎏ 1 x 2 ᎏ ϭ ᎏ 1 2 2 x ᎏ Ϫ ᎏ 1 x 2 ᎏ Then simplify: ᎏ 1 2 2 x ᎏ Ϫ ᎏ 1 x 2 ᎏ ϭ ᎏ 1 x 2 ᎏ Pr...

Ngày tải lên: 07/08/2014, 22:20

... so its equation is therefore y ϭ x 2 Ϫ 3. x y 12 3456 1 2 3 4 5 1 –2 –6 –5 –4 –3 1 2–3–4–5–6 x y 12 34567 1 2 3 4 5 1 –2 –3 1 2–3–4–5–6–7 –ALGEBRA REVIEW 84 Answer b. To simplify the expression, ... then x 2 ϩ 8x ϭ (Ϫ2) 2 ϩ (8)(Ϫ2) ϭ 4 ϩ ( 16 ) ϭ 12 . None of the answer choices is 12 , so try x ϭ 10 . If x ϭ 10 , then x 2 ϩ 8x ϭ 10 2 ϩ (8) (10 ) ϭ 10 0 ϩ 80 ϭ 18 0. Theref...

Ngày tải lên: 07/08/2014, 22:20

... bottom: x ϩ 13 ϭ 17 Solve for x: x ϩ 13 Ϫ 13 ϭ 17 Ϫ 13 x ϭ 4 (x + 8)(x + 13 )(x Ϫ 2) ᎏᎏᎏ (x + 8)(x Ϫ 2) (x + 8)(x 2 + 11 x Ϫ 26) ᎏᎏᎏ (x 2 + 6x Ϫ 16 ) (x + 8)(x 2 + 11 x Ϫ 26) ᎏᎏᎏ (x 2 + 6x Ϫ 16 ) (x + ... 49 42 ᎏ 6 6͙d ෆ ᎏ 6 –ALGEBRA REVIEW 86 c ϩ 2d ϭ 13 c ϩ 2 (11 Ϫ 2c) ϭ 13 c ϩ 22 Ϫ 4c ϭ 13 22 Ϫ 3c ϭ 13 22 ϭ 13 ϩ 3c 9 ϭ 3c c ϭ 3 Now substitute this answer into either...

Ngày tải lên: 07/08/2014, 22:20