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algebra EOC10

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  • 1. Multiple-choice
    30 seconds
    1 pt

    Which expression is equivalent to

     (10+7r−r2)+(−6r2−18+5r)?\left(10+7r-r^2\right)+\left(-6r^2-18+5r\right)?  

     âˆ’7r2+2r+8-7r^2+2r+8  

     7r2+12r+87r^2+12r+8  

     âˆ’7r2+12r−8-7r^2+12r-8  

     7r2+2r−87r^2+2r-8  

  • 2. Drag and drop
    1.5 minutes
    1 pt

    A grill at a barbecue restaurant will be used to cook sausage links that are 2 lb each and briskets that are 6 lb each. No more than 120 lb of sausage links and briskets will be cooked on the grill.

    Which inequality represents all possible combinations of x, the number of sausage links that will be cooked on the grill, and y, the number of briskets that will also be cooked?​

    (a)  

    2x+6y≤1202x+6y\le120  

    6x+2y<1206x+2y<120  

    6x+2y>1206x+2y>120  

    2x+6y≥1202x+6y\ge120  

  • 3. Multiple-choice
    30 seconds
    1 pt

    Which expression is equivalent to

     45m− 6p2v1215m−2p8v−4\frac{45m^{-\ 6}p^2v^{12}}{15m^{-2}p^8v^{-4}}  for all values of m, p, and v where the
    expression is defined?

     3v8m8p6\frac{3v^8}{m^8p^6}  

     3v16m4p6\frac{3v^{16}}{m^4p^6}  

     30m3p4v3\frac{30m^3}{p^4v^3}  

     30v3m3p4\frac{30v^3}{m^3p^4}  

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