9th Algebra

posted by Amanda

Im in 9th grade algebra. and we are learning adding and subtracting real numbers. im stumped on a couple of problems. I get confused when i see the absolute value lines. Does that change the munber? Do i just go on with the problem as if they werent there?
And i have NO idea how to do 2/5 - 7/8?!?

  1. oneirocritic

    2/5 - 7/8

    = 2*8/5*8 - 7*5/8*5

    = 16/40 - 35/40

    = -19/40

  2. claire


  3. chris

    1. find the latreal area of a cylinder of revolution if its altitude is 5.5 inches and the diameter of its base is 7 inches.

  4. Hadassah

    idk im in 9H soo idc either i juss need my ? answered duhhh!!!!! y else wouldi b here

  5. Corinne

    what is 10 to the second power in standard form? Please answer by the end of today. Please and Thank You

    Corinne Moore

  6. Corinne

    O and btw im in 8H buhh its high skool work so yahh Earth Sci all that good stuff
    Corinne Moore

  7. Karen


  8. Karen

    Quadratic functions quest

  9. Sytashia


  10. mckayla

    Put these numbers in order from least to greatest.

  11. britany


  12. Cathy

    Make an input-output table for the function use 0,1,2,3,4,5 as the x value.


  13. Del Ali

    Start with a numberX and 12,then divide by 4,next subtract7, and finally multiply by 2. a. convert the description to an algebraic expression. b.ifx=5,what is the value of the expression?

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