Thursday

August 28, 2014

August 28, 2014

Posted by **bob** on Saturday, March 10, 2012 at 3:27pm.

============================

(0.324 + 2x)2

Rearrange to get an expression of the form ax2 + bx + c = 0 and use the quadratic formula (solve for x. This gives:

x = 1.05E-2, 0.143

basically i understand they use the quadratic equation but how did they change that crazy fraction into the quadratic formula?

- math -
**Damon**, Saturday, March 10, 2012 at 5:40pmIf that fraction = 0 (you left that out) then the denominator is not part of the problem unless it is zero.

32.88 E-4 - 11.91 E-2 x + x^2 = 0

x = [ 11.91E-2 +/- sqrt(142 E-4 - 132 E-4) ] / 2

= [ .119 +/- E-2 sqrt(10) ]/2

= [.119 +/- .031 ]/2

= .075 or -.044

- math -
**trevor**, Tuesday, March 13, 2012 at 12:37pmfor the following population of n=9 scores below.

11 12 16 15 19 16 13 17 11

range........

variance standard deviation s:

**Related Questions**

Math - Quadratic - Rearrange this expression into quadratic form, ax2 bx c = 0...

Math - Rearrange this expression into quadratic form, ax2 bx c = 0 0.20= ((x^2...

Math - Use the quadratic formula to solve each of the following quadratic ...

math - A company has sales (measured in millions of dollars) of 50, 60, and 75 ...

math - what would it be if you took 324.76 and tryed to make it notation and in ...

Algebra - Bob thanks for answering my question, it still seems a tad bit ...

Math - Stupid question time. I need to figure out how to rearrange equations to ...

Algebra 2 help!!! - What value completes the square for the expression? x2 + 14x...

math,algebra - can someone help me out factor out this 0=16t^2-122t+180 i have ...

Math - How do you graph the quadratic formula x^2-10x=11? Here's what I got so ...