Some basic math help needed

RESmonkey · Nov 29, 2007

I did parts a through c of the first problem. My answer for part c is k = -2/5.

I don't know how to do D. Please help.

EDIT = forgot pic

http://img153.imageshack.us/im...7540/blachquickvs7.gif

RESmonkey · Nov 29, 2007

Born2bwire · Nov 29, 2007

Plug'n'chug.

Gibson486 · Nov 29, 2007

x = 4.2
y = k
solve for k

RESmonkey · Nov 29, 2007

Ah, too late there

I ended up getting it the way Gibson described. k = -.37ish. Thanks

hypn0tik · Nov 29, 2007

Originally posted by: Gibson486
x = 4.2
y = k
solve for k

Pretty much.

-8(4.2)^2 + 5(4.2)(k) + k^3 = -149

Solve for k.