Mathematics

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Unit 6 Review

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  • 1. Multiple-choice
    30 seconds
    1 pt
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    A part of linear function gg is shown on the grid.

    Which inequalities best describe the domain and range of the part shown?

    D: 2x<3-2\le x<3  

    R: 6<g(x)3-6<g\left(x\right)\le3  

    D: 6x<3-6\le x<3  

    R: 2<g(x)1-2<g\left(x\right)\le1

    D: 6<x3-6<x\le3  

    R: 2g(x)<1-2\le g\left(x\right)<1

    D: 2<x1-2<x\le1  

    R: 6g(x)<3-6\le g\left(x\right)<3

  • 2. Multiple-choice
    30 seconds
    1 pt

    A shoe company is going to close one of its two stores and combine all the inventory from both stores. These polynomials represent the inventory in each store:

    Store A:

     12g2+92\frac{1}{2}g^2+\frac{9}{2}  

    Store B:
     4g235g+344g^2-\frac{3}{5}g+\frac{3}{4}  

    Which expression represents the combined inventory of the two stores?

     92g235g+214\frac{9}{2}g^2-\frac{3}{5}g+\frac{21}{4}  

     92g2+3910g+34\frac{9}{2}g^2+\frac{39}{10}g+\frac{3}{4}  

     72g2+35g+154-\frac{7}{2}g^2+\frac{3}{5}g+\frac{15}{4}  

     72g2+5110g34-\frac{7}{2}g^2+\frac{51}{10}g-\frac{3}{4}  

  • 3. Multiple-choice
    30 seconds
    1 pt

    Which expression is equivalent to: 7x2+(5x4x2)+3(8x+9)-7x^2+\left(5x-4x^2\right)+3-\left(8x+9\right)  

    3x2+3x6-3x^2+3x-6  

    11x2+13x+12-11x^2+13x+12  

    11x23x6-11x^2-3x-6  

    3x2+19x27-3x^2+19x-27  

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