The function h is defined by h(x)=3x-2 and the function g is defined by g(x)=3h(x)-1. If g(k)=11, what is the value of k?
A. 2
B. 3
C. 4
D. 5
E. 6
If k^4=16a^2, then k^2=
A. 4a^2
B. 1/4a
C. a/4
D. 4a
E. a^2/4
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OpenStudy (dtan5457):
hm
OpenStudy (dtan5457):
g(x)=3h(x)-1
h(x)=3x-2
that means g(x) is actually 3(3x-2)-1
g(x)=6x-7
x= what to make g(x)= 11?
OpenStudy (anonymous):
@dtan5457 ohhhhhh ty :D I made an error when somewhere
OpenStudy (radar):
Wouldn't that be g(x)=9x-7 ??
OpenStudy (dtan5457):
oh crud
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OpenStudy (anonymous):
nvm I didn't make an error ... O.o
OpenStudy (dtan5457):
i guess i made an error too
OpenStudy (anonymous):
lol
OpenStudy (radar):
error or typo?
OpenStudy (anonymous):
nvm i got it :D
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OpenStudy (dtan5457):
actual error 3(3x) literally went to 6x in my mind for some reason
OpenStudy (anonymous):
the answer is 4 ^.^
OpenStudy (dtan5457):
its been a long night ^_^
OpenStudy (anonymous):
it's been a long but short life u.u
OpenStudy (radar):
Why not 2 ??
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OpenStudy (dtan5457):
9x-7
9(4)-7
36-7 if im not going crazy again is not 11
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OpenStudy (anonymous):
ye
OpenStudy (dtan5457):
this can;t be real lol
OpenStudy (anonymous):
wat can't ? @dtan5457
OpenStudy (dtan5457):
g(x)=3h(x)-1
is that 3(3x-2)-1?
OpenStudy (dtan5457):
h(x)=3x-2
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OpenStudy (dtan5457):
?
OpenStudy (anonymous):
there's also another x
OpenStudy (anonymous):
3h(x)-1
OpenStudy (radar):
Would not 3h(x) = 3(3x-2) where is the extra x coming from?
OpenStudy (dtan5457):
i'm pretty sure the x is part of the function name
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OpenStudy (dtan5457):
not an extra x
OpenStudy (anonymous):
function g is defined by g(x)=3h(x)-1
OpenStudy (radar):
h(x) is the function name.
OpenStudy (anonymous):
. _ . if i get it rong then whatever, but enuf w/ this qs. I'm pretty sure the other x is not part of the equation and the book this question is coming from isn't the best ._.
Nnesha (nnesha):
got it
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OpenStudy (anonymous):
@Nnesha ?
Nnesha (nnesha):
3(3x-2)(x)-1=11
^^^ how u got that x here ??
Nnesha (nnesha):
like radar sir said 11=9x-7|dw:1422074285750:dw|
distribute then solve
isn't that right ??