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Sunday, August 25

  1. page Home edited ... Mathematics is a language as English is a language. This virtual space is created for you to s…
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    Mathematics is a language as English is a language. This virtual space is created for you to succeed in both: your English and mathematics. Some of you are developing your basic math skills and others your English skills by taking courses at LaGuardia.
    We find that math is important in our everyday life as well as our English because that is the "official" language of New York.
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    our goals
    and
    and thrive!
    No matter the language (or languages) you speak, I don't want you to have English as an obstacle for doing great in math!
    In the video below you can see how language is often an obstacle for math, not because you cannot do math!! :)
    (view changes)
    11:46 pm

Monday, June 10

  1. page 9. Quadratic Equations edited ... Exercise 48. {e48.jpg} first you must draw a right triangle, place the cm where it belongs…
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    Exercise 48.
    {e48.jpg}
    first you must draw a right triangle, place the cm where it belongs.
    l
    6 H
    l_90
    4
    1) you need to use the formula a^2+b^2=h^2
    2) plug in the numbers 6^2+4^2=H
    3) solve the equation 6^2=36 and 4^2=16
    4) now you must add the centimeters 36 and 16 which gives you 52. the answer may be negative or positive, therefore your answer is +- radical 52.

    (view changes)
    9:52 pm
  2. page 2. Scientific Notation edited ... Exercise 8. {e8.jpg} ... of multiplication and then 10 to power 7. We write 10 to pow…
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    Exercise 8.
    {e8.jpg}
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    of multiplication
    and then 10 to power 7. We write 10 to power 7 because we moved 7 numbers to the left.
    The answer is 2.3 x 10 ^7
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    Exercise 10.
    {e10.jpg}
    1) First you multiply 3 and 4 which gives you 12.
    2) Subtract the exponents 6 and 2, which gives you 4. Your answer now looks like--> 12 x10^4
    3) In order to have in in a scientific notation form, you should place the decimal point after the first number which your answer will now be 1.2x10^5

    (view changes)
    9:39 pm
  3. page 9.1. Linear Inequalities edited ... Exercise 49. {e49.jpg} ... the equation. - - Multiply -5 ... and 10 So So …
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    Exercise 49.
    {e49.jpg}
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    the equation.
    -

    -
    Multiply -5
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    and 10
    So

    So
    your problem
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    - 20
    2nd

    2nd
    step: combine
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    the equation
    -After

    -After
    step 2
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    - 20
    3rd step: solve for x, add 20 on both sides, and add 19 to both sides as well
    -20 is greater than or equal to 20x
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    to -1
    Side

    Side
    note: dont
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    the solution
    Exercise 50.
    {e50.jpg}
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    Exercise 52.
    {e52.jpg}
    add the common terms, 2x-5x=-3 than you subtract 3 from both sides,(-3-6=-3) you than divide 3 by 6 which becomes -3.You have to change the signs of the (> to <) so the answer is
    x<-3

    (view changes)
    6:20 pm
  4. page 3. Exponents edited ... Exercise 12. {e12.jpg} What do You multiply all the exponents in the problem 5,3,4,2 you …
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    Exercise 12.
    {e12.jpg}
    What doYou multiply all the exponents in the problem 5,3,4,2 you add the exponents on the top than you mean by "keepdivide the base out" here? (Cyndi)bottom exponents y^17/8
    Exercise 13.
    {e13.jpg}
    (view changes)
    6:14 pm

Wednesday, June 5

  1. page 9.3. Equation of the Line edited ... Exercise 64. {e64.jpg} First So first you add 10 have to simplify this to standard for…
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    Exercise 64.
    {e64.jpg}
    FirstSo first you add 10have to simplify this to standard form by getting a single Y on both sides which gives you -5y=-10x+20.Then you divide everythingone side.
    - 10x - 5y = 20
    *Add 10x to each side
    - 5y = 20 +10x
    *Divide each side
    by -5 which gives you y=-10/-5x+4.You can't keep
    y = - 4 - 2x
    y = -2x -4
    *The -2 represents
    the numerator as a negative numberslope, so you multiplyfor every 2 units it by negative 1 which gives you 10/5x+4.goes down, it moves to the right one unit
    *The -4 represents the y-intercept (or where it crosses the y-axis)

    Exercise 65.
    {e65.jpg}
    (view changes)
    4:16 pm
  2. page 9.3. Equation of the Line edited ... Exercise 64. {e64.jpg} ... gives you y=-10/-5x+4. y=-10/-5x+4.You can't keep the numera…
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    Exercise 64.
    {e64.jpg}
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    gives you y=-10/-5x+4.y=-10/-5x+4.You can't keep the numerator as a negative number so you multiply it by negative 1 which gives you 10/5x+4.
    Exercise 65.
    {e65.jpg}
    (view changes)
    3:09 pm
  3. page 9.3. Equation of the Line edited ... Exercise 64. {e64.jpg} First you add 10 on both sides which gives you -5y=-10x+20.Then you…
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    Exercise 64.
    {e64.jpg}
    First you add 10 on both sides which gives you -5y=-10x+20.Then you divide everything by -5 which gives you y=-10/-5x+4.
    Exercise 65.
    {e65.jpg}
    (view changes)
    3:04 pm

Tuesday, June 4

  1. page 6. Linear Equations edited ... Exercise 32. {e32.jpg} First Distribute distribute -3 into ... and -4, your you're l…
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    Exercise 32.
    {e32.jpg}
    First Distributedistribute -3 into
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    and -4, youryou're left with
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    terms and youryou're left with -3x+20, you-3x+20. You do the
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    the other sideside, distribute the
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    you get 8x-4-9 than8x-4-9. Then you add
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    20=11x-13 you than​then add 13
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    get 33=11x you than. You then divide 11
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    get x=3.
    English feedback by Cyndi. The "a" in "than" is like the "a" in "compare" because that's the spelling for more than, less than, etc. The "e" in "then" is like the "e" in "next" because that's the spelling for "First you do this; then you do that... etc."

    Exercise 33.
    {e33.jpg}
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    would have to 8x subtract
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    combine 8x and subtract 3x
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    the 3 infrontin front of the
    (view changes)
    8:16 pm

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