Mathematics

8th

grade

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Algebra Final

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20 questions

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  • 1. Multiple Choice
    15 minutes
    1 pt

    Given the function f(x) =  3xx23x-x^2 , find f(-2)

    10

    -10

    2

    -2

  • 2. Multiple Choice
    15 minutes
    1 pt

    The number of bacteria present in a colony is 180 at noon, and it increases at a rate of 22% per hour. How many bacteria will be present 4 hours later? Use the exponential  y=abxy=ab^x  

    399

    450

    553

    220

  • 3. Multiple Choice
    15 minutes
    1 pt

    Solve the inequality.  2(x3)>36-2\left(x-3\right)>36  

     x=15x=15  

     x>15x>-15  

     x>15x>15  

     x<15x<-15  

    No solution

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