anonymous
  • anonymous
A 30 foot rope that is used to hold a boat near a dock forms a 32 degree with the level of the water and is connected to the boat at this level. What is the height of the dock to the nearest tenth of a foot?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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dumbcow
  • dumbcow
sin(32) = h/30 h = 30*sin(32)
anonymous
  • anonymous
Two forces of 130 and 150 pound yield a resultant force of 180 pounds. Find, to the nearest tenth of a degree, the angle between the original two forces.
dumbcow
  • dumbcow
im not 100% on this one i used law of cosines and found the angle to be 100.3 degrees

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anonymous
  • anonymous
i would have to find angle a and c and add them together correct?
anonymous
  • anonymous
or would i be finding angle b?
dumbcow
  • dumbcow
correct between 130 and 180 i found angle 55.06 between 150 and 180 i found angle 45.27
anonymous
  • anonymous
wait are you sure it isnt angle b?
dumbcow
  • dumbcow
whats your reference is angle c opposite of 180? if it is then yes your right add a and b
anonymous
  • anonymous
you start off with a parallelogram correct?
dumbcow
  • dumbcow
yes with 180 vector across middle
anonymous
  • anonymous
yes and the top triangle i labeled bottom left as A top left as B and top right as C
dumbcow
  • dumbcow
oh ok then, add A and C to find angle between 130 and 150 vectors
dumbcow
  • dumbcow
my A was 55 my C was 45

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