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  1. using compatible numbers 0.3359×5.8912×5.01 ~ 0.33x6x5 = 9.9 using clustering 113+115+107+106 ~ 4x110 = 440 using a suitable translation strategy 593×8.2÷78 ~ 590x(7.8 + 0.39)÷78 = 59 + 2.95 = 61.95 using...

  2. ... If x and y are irrational, which of the following expression must be irrational? A. 2x B. x + 2y C. 2xy D. All...

  3. 1. Yes and no. Yes - it will be difficult if you want to pursue a degree in IT. No - it is not an issue if you pursue professional qualifications by the industry (like certificates from Microsoft). 2. Anything related to chemistry...

  4. An algebraic expression of the form a + bx + cx^2 + dx^3 + ………….. in which a, b, c, d are ...like variable x) 現在將 term with the highest power 寫先, For quadratic expression , ax^2 + bx + c For cubic expression , ax^3 + bx^2 + cx + d For quartic expression ...

  5. ... every day. “Every day” (two words) is an expression that means each day and should be used for everything other than the quotidian...

  6. x² + 2x - 5 = 0 α + β = - 2 α β = - 5 6ai)(α + β) (α - β) = (α + β) (±√(α - β)²) = (α + β) (±√( (α + β)² - 4 α β )) = - 2 (±√( ( - 2 )² - 4 (- 5) )) = - 2 (± 2√6) = ± 4√6 aii)3^(α+1) .3^(β+1) = 3 ^ (α+β+2) = 3 ^ (-2+2) = 3 ^ 0 = 1 b)The required equation...

  7. 1a.12÷3+4=8 1b.(1+2+3+4)÷5+6=8 1c.5-3+(3x2)=8 1d.10x2-(3+9)=8 2.http://upload.lsforum.net/users/public/d902211111j56.png

  8. (2x+5)(2x-5) = 4X^2 -10X+10X-25 =4X^2-25 (2x+7y)(-7y+2x) =-14xy+4x^2-49y^2+14xy =4x^2-49y^2 2(4x+3y)(4x-3y) = 2x(16x^2-12xy+12xy-9y^2) =2(16x^2-9y^2) =32x^2-18y^2

  9. ...3 = -1.6666666677.... = -1.7 3.Estimate the value of the following expressions .( "~" refers to大約等於) (A)139.6 ~ 140, 59.82 ~ 60...

  10. ...be admitted to the first grade,Take this cold letter hope can expression some voice and concept, I believe each bit love Tin children of...