Algebra Quiz2

10 Questions | Total Attempts: 34

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Algebra Quiz2

Topics covered include: matrices, distributive property with exponents, probability, domain, and range.


Questions and Answers
  • 1. 
     (7+x)+8
    • A. 

      15+x

    • B. 

      1+x

    • C. 

      56+8x

    • D. 

      8x+7

  • 2. 
      Symplify 3(x-9).
  • 3. 
     simplify  x(1+x3) using what you know about the properties.
  • 4. 
    • A. 

      {10,-6,-11}

    • B. 

      {-10,-6,11}

    • C. 

      {-7,-12,- 4 }

    • D. 

      {-7,12,4 }

  • 5. 
  • 6. 
    Solve the Matrix  N= -5 [ 8  9  7 ]. (write the numbers with parenthesis and  commas between: for example [5,6,7] )
  • 7. 
    Add the matrices  [10  9  12] + [15   -6  13] (write the numbers with parenthesis and  commas between: for example [5,6,7] )
  • 8. 
    • A. 

      4 by 4

    • B. 

      3 by 3

    • C. 

      3 by 4

    • D. 

      2 by 4

  • 9. 
    • A. 

      30%

    • B. 

      60%

    • C. 

      50%

    • D. 

      40%

  • 10. 
    Isabelle's Bagel Shop recently sold 10 bagels, of which 2 were raisin bagels. What is the experimental probability that the next bagel sold will be a raisin bagel? p(raisin bagel)=? Simplify your answer and write it as a fraction or whole number.