anonymous
  • anonymous
37.5% of a number is 105. what is the number?
Mathematics
jamiebookeater
  • jamiebookeater
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mayankdevnani
  • mayankdevnani
|dw:1355145221270:dw|
mayankdevnani
  • mayankdevnani
can you now solve it? @bunyonb
anonymous
  • anonymous
It never occured to me that that was the solution.

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anonymous
  • anonymous
There is an equation question that says: From the graph read off where − 3 + x^2 + 2 x = − 2 x − 3
mayankdevnani
  • mayankdevnani
that was the solution , right
anonymous
  • anonymous
yes
mayankdevnani
  • mayankdevnani
and find the value of x, can you?
anonymous
  • anonymous
may i upload the paper to show you what i am talking about?
mayankdevnani
  • mayankdevnani
plzz
anonymous
  • anonymous
ok hold on
mayankdevnani
  • mayankdevnani
k
anonymous
  • anonymous
anonymous
  • anonymous
Look at question 3 and 4
anonymous
  • anonymous
at Question 3 (d)
mayankdevnani
  • mayankdevnani
sorry!!!i haven't any knowledge about this!!! sorry!!! @bunyonb
anonymous
  • anonymous
ok thanks for your help
mayankdevnani
  • mayankdevnani
a gr8 welcome
anonymous
  • anonymous
cwrw
anonymous
  • anonymous
@cwrw238 how about you?
mayankdevnani
  • mayankdevnani
@cwrw238 plz help bunyonb!!!
cwrw238
  • cwrw238
is it question 3 d you need help with?
anonymous
  • anonymous
yes
anonymous
  • anonymous
There is an equation question that says: From the graph read off where − 3 + x^2 + 2 x = − 2 x − 3
cwrw238
  • cwrw238
have you drawn the graph of y = -3 + x^2 + 2x?
anonymous
  • anonymous
yes
cwrw238
  • cwrw238
ok its the shape of a U i expect now you need to draw the graph of y = -2x - 3 on the same graph paper. plotting 3 points will be ok i suggest you plot: x y 0 -3 -2 1 1 -5
anonymous
  • anonymous
oh so i would need to plot two equations using some points thats what you are saying?
anonymous
  • anonymous
on the same graph
cwrw238
  • cwrw238
now their graph wil1 be a straight line which will probably cut the curved graph at two points at these points the 2 expressions are equal and thats what you want - the coordinates of these 2 points (x,y)
cwrw238
  • cwrw238
yes on same graph
anonymous
  • anonymous
ok
cwrw238
  • cwrw238
you should get (-4,5) for one of the points - i'll let you find the second one.
anonymous
  • anonymous
cool
anonymous
  • anonymous
so you dont have to plot all the points?
cwrw238
  • cwrw238
no 3 points is enough for y = -2x-3
anonymous
  • anonymous
ok
anonymous
  • anonymous
I just plot both equations
anonymous
  • anonymous
its true that the line touches the curve at -4
anonymous
  • anonymous
the line touches the curve starting at ( - 0.5,, -4)
anonymous
  • anonymous
but my graph is kinda messy so it is hard to figure out the second one
anonymous
  • anonymous
due to previous mistakes
anonymous
  • anonymous
so the second point would be when it stops touching the curve?
anonymous
  • anonymous
My graph is inaccurate because the straight line is kinda off
anonymous
  • anonymous
I scaled the y-axis as even numbers
anonymous
  • anonymous
How did you get -4, 5 ?
anonymous
  • anonymous
i got - 0.5, -4
anonymous
  • anonymous
@cwrw238 you there?

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