anonymous
  • anonymous
A lamppost casts a shadow 44 feet long. The angle measure of the shadow is 33°. How tall is the lamppost to the nearest tenth of a foot?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
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amistre64
  • amistre64
with any luck, the shadow is being caused by the sun and not the lamp itself :)
amistre64
  • amistre64
apply the rule for the tangent of an angle

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anonymous
  • anonymous
?
amistre64
  • amistre64
do you know how to define the tangent function?
anonymous
  • anonymous
|dw:1332585908312:dw|
anonymous
  • anonymous
I don't have a calculater… can you do it pls?
anonymous
  • anonymous
you cannot use the tangent rule
anonymous
  • anonymous
it is it 44xsin33 it is from sin 33=o/44 =44 sin 33
anonymous
  • anonymous
=44.99612
amistre64
  • amistre64
bert, your "drawing" is flawed.
amistre64
  • amistre64
I hope your intentions are not to misguide the asker ...
amistre64
  • amistre64
tan(33) = h/44 44 tan(33) = h \[44sin(33)\ne44tan(33)\]
anonymous
  • anonymous
@amistre64 So what would the exact answer be?
amistre64
  • amistre64
google tends to have a nice search function that acts like a calculator; but I think it reads arguement of the trig function in radians. So if you type in degrees it seems to work fine: http://www.google.com/search?aq=f&sourceid=chrome&ie=UTF-8&q=44tan(33)#hl=en&sclient=psy-ab&q=44tan(33degrees)&oq=44tan(33degrees)&aq=f&aqi=&aql=&gs_l=serp.3...6422l7981l0l8245l7l7l0l0l0l1l151l675l5j2l7l0.frgbld.&pbx=1&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&fp=dcfb21c058468efb&biw=1280&bih=923
amistre64
  • amistre64
but the "exact" answer is 44tan(33), everything else is an approximation
anonymous
  • anonymous
THANKS SO MUCH!!
amistre64
  • amistre64
yw
amistre64
  • amistre64
i think the answer they want tho is rnded to the tenth; so 28.6 should suffice

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