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anonymous
 one year ago
Quadratic Formulas  10 questions
tried 6 times and failed epically. just don't get it.
1) When the sum of 5 and twice a positive number is subtracted from the square of the number, 0 results. Find the number.
2) 2/5x^2 x+ 19/15 =0
3) .6x^2 = 1.2x +0.6
4) A rule for estimating the number of board feet of lumber that can be cut from a log depends on the diameter of the log. To find the diameter required to get 121 board ft of lumber, the equation (d4/4)^2 = 121.
are both answers reasonable?
5) 9x^2 7x 5=0
6) 5x^2  2x +13 = 18x +1
7) 6p^2 = 19p 3
8) 5x^2 = 20x
anonymous
 one year ago
Quadratic Formulas  10 questions tried 6 times and failed epically. just don't get it. 1) When the sum of 5 and twice a positive number is subtracted from the square of the number, 0 results. Find the number. 2) 2/5x^2 x+ 19/15 =0 3) .6x^2 = 1.2x +0.6 4) A rule for estimating the number of board feet of lumber that can be cut from a log depends on the diameter of the log. To find the diameter required to get 121 board ft of lumber, the equation (d4/4)^2 = 121. are both answers reasonable? 5) 9x^2 7x 5=0 6) 5x^2  2x +13 = 18x +1 7) 6p^2 = 19p 3 8) 5x^2 = 20x

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.09) I can do this one :) 10) 5x^2 = 3 +2x

hybrik
 one year ago
Best ResponseYou've already chosen the best response.1Do you know the quadratic formula?

hybrik
 one year ago
Best ResponseYou've already chosen the best response.1You have to put it in that form for the quadratic formula.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh the x = b (sqrt b4(a)(c))/ 2(a)

hybrik
 one year ago
Best ResponseYou've already chosen the best response.1Yes, \[x =\frac{ b \pm \sqrt{b^24ac} }{ 2a}\]

hybrik
 one year ago
Best ResponseYou've already chosen the best response.1you have to plug in the points.

hybrik
 one year ago
Best ResponseYou've already chosen the best response.1To do this, you can plug in the points to get:

hybrik
 one year ago
Best ResponseYou've already chosen the best response.1wait keep in mind if it is just x^2, the value is 1

hybrik
 one year ago
Best ResponseYou've already chosen the best response.1Okay so you would have \[x=\frac{ 2\pm \sqrt{(2)^24(1)(5)} }{ 2(1) }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I gtg, will be on tomorrow can you help then?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0no available computer till tomorrow

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank You so much. Very appreciated

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0um...so did you still want to help me? lol

pooja195
 one year ago
Best ResponseYou've already chosen the best response.0Can you make a post for each question so its easier to help? ..

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I mean, yeah I can lol.
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