Mathematics
12 Online
OpenStudy (highschoolmom2010):
help please picture attached
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OpenStudy (highschoolmom2010):
OpenStudy (highschoolmom2010):
|dw:1376252434909:dw|
ganeshie8 (ganeshie8):
Yes, you want to find x
take a close look and see if u knw(can knw) any other sides in that triangle ?
OpenStudy (highschoolmom2010):
|dw:1376252547785:dw|
using the drawing i got 16 idk if its right
ganeshie8 (ganeshie8):
thats right ! 15 ft radius + 1ft overhang = 16
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ganeshie8 (ganeshie8):
keep going
OpenStudy (highschoolmom2010):
sorry 1 sec
ganeshie8 (ganeshie8):
ok
OpenStudy (highschoolmom2010):
\[\cos (25)=\frac{ 16 }{ x }\]
OpenStudy (highschoolmom2010):
i have forgotten what to do next
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ganeshie8 (ganeshie8):
you wanto find x
ganeshie8 (ganeshie8):
maybe multiply x both sides first
OpenStudy (highschoolmom2010):
\[(x)*\cos25= \frac{ 16 }{ x }*(x)\]
\[X \cos 25=16\]
ganeshie8 (ganeshie8):
next ?
OpenStudy (highschoolmom2010):
\[\frac{ X \cos 25 }{ \cos 25 }=\frac{ 16 }{ \cos 25 }\]
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ganeshie8 (ganeshie8):
perfect !
OpenStudy (highschoolmom2010):
\[x=14.5\]
ganeshie8 (ganeshie8):
try again
ganeshie8 (ganeshie8):
looks uve multiplied cos25, instead of dividing
OpenStudy (highschoolmom2010):
16.1
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ganeshie8 (ganeshie8):
try again
OpenStudy (highschoolmom2010):
*breaking out scientific calculator*
OpenStudy (highschoolmom2010):
approx 17.6
ganeshie8 (ganeshie8):
lol, yes 17.65 ft
but they want the answer in ft and inch
OpenStudy (highschoolmom2010):
ok so i convert ???
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OpenStudy (highschoolmom2010):
the .65 is confusing me