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November 23, 2014

November 23, 2014

Posted by **HG** on Saturday, January 9, 2010 at 1:32pm.

1. F(x) =5x^2-2x

F (0), I got o

F (-1) I got 7

F (2) I got 16

2. -0.4x<-16

I got x>40

3. 8x-(5x+7) =14

My answer: 7/3

4. -19<=3x-8<=-7

My answer: -11/3<=x<=3

- algebra -
**Marth**, Saturday, January 9, 2010 at 4:07pm1. Correct

2. Correct

3. Check your signs on the distribution.

4. -11/3 <= x <= ?

Check your algebra.

- algebra -
**hg**, Saturday, January 9, 2010 at 4:17pmI am still getting 3 what am I doing wrong

3x-8<=-7

3x+8-8<=-7+8

3x<=1

3/1=3

x<=3

- algebra -
**Marth**, Saturday, January 9, 2010 at 4:20pmYou are correct until the step 3x <= 1.

3x * (1/3) <= 1 * (1/3)

x <= 1/3

- algebra -
**Anna**, Saturday, January 9, 2010 at 4:21pmOh my gosh I completely missed that, thank you.

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