Friday

September 19, 2014

September 19, 2014

Posted by **hokoslavia** on Sunday, March 16, 2008 at 6:38pm.

- algebra -
**Damon**, Sunday, March 16, 2008 at 6:56pmjust plod along

first do g(-7)

then do f(whatever you got for g)

- algebra -
**hokoslavia**, Sunday, March 16, 2008 at 7:01pmi got -55/7 is that right?

- algebra -
- algebra -
**Damon**, Sunday, March 16, 2008 at 7:32pmg(-7) = 4(-7) - 5 = -28 - 5 = -33

f(-33) = (-33)^2 + 6 = 1095 ???

- algebra -
**hokoslavia**, Sunday, March 16, 2008 at 7:46pmaccording to my multiple choices its a fraction a -55/7 b 384/7 c 295/49 d 63/55

- algebra -
**Damon**, Sunday, March 16, 2008 at 7:51pmThen there is a typo somewhere. There was no divide in the problem statement. Perhaps at x = -1/7 ??

- algebra -
**hokoslavia**, Sunday, March 16, 2008 at 7:56pmf(x)=x^2+6 and g (x) =x +8/xfind (f ° g)(-7) yep there was sorry

- algebra -
**Damon**, Sunday, March 16, 2008 at 8:00pmare you absolutely sure g(x) is not (x+8)/x ??

- algebra -
**Damon**, Sunday, March 16, 2008 at 8:03pmif g(x) = (x+8)/x

then

g(-7) = -1/7

then

f(-1/7) = 1/49 + 6

= 1/49 + 294/49

= 295/49

- algebra -
**Damon**, Sunday, March 16, 2008 at 8:07pmBUT

if it is as you wrote it

f(x)=x^2+6 and g (x) =x +8/xfind (f ° g)(-7) yep there was sorry

then

g(-7) = -7 + 8/-7

= -49/7 - 8/7=

= -57/7

the f(-57/7) = 57^2/49 +294/49

=3249/49 + 294/49

= 3543/49

which is not even on the list

- algebra -
**hokoslavia**, Sunday, March 16, 2008 at 8:08pmok then the other one is right im sorry and thank you

- algebra -
- algebra -
**Damon**, Sunday, March 16, 2008 at 8:09pmYou are welcome

**Answer this Question**

**Related Questions**

algebra - confrused with this one too let f(x)=x^2+6 and g (x) =4x-5 find (f ° g...

Algebra Help Inverse One-to-one - Did I do this right? Problem: If the ...

Algebra-One to one function - Could you please check my answers and help me with...

Algebra Help Inverse One-to-one - I need to know if I have done this correctly. ...

pre-algebra - Use algebra tiles to find the difference. Let one white tile equal...

pre-algebra - Use algebra tiles to find the difference. Let one white tile equal...

ALGEBRA - I need to find a slope and y intercept of the line and write the ...

Algebra - I need help on one particular part of algebra because i forgot what my...

algebra - 1. the function f(x)=6x/3x-5 is one to one. find its inverse and check...

Algebra 2 - Find the last digit in 39999. I can not figure this one out. Can ...