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September 18, 2014

September 18, 2014

Posted by **Monique** on Sunday, May 11, 2008 at 5:19pm.

I'm confused on how you do these problems. Can someone show me how to do them? Thanks much!

- Math -
**bobpursley**, Sunday, May 11, 2008 at 6:01pmI will start you on b

f(11)=(11^2+1)/2=61 so b is 61

25=(a^2+1)/2 solve for a....

- Math -
**Monique**, Sunday, May 11, 2008 at 6:13pmOk, so f(25)=(25^2+1)/2. 626/2=313. So, a=313. When substituted, 61-313 is -252.

There's a small issue though. This question is multiple, and I don't see a -252 as one of the choices:

a. -14

b. 36

c. 68

d. 77

e. 86

Did I do something wrong?

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