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Sonja [21]
3 years ago
15

this is geometry i need help so please help. i know the answer is 72 3/8 degrees i just need help solving it

Mathematics
1 answer:
kifflom [539]3 years ago
8 0

now, keeping in mind that 1 degree has 60 minutes, and that 1 minute has 60 seconds and therefore there are 60*60 seconds in 1 degree, or 3600 seconds.


72°22'30", has 72 degrees, plus 22 minutes and 30 seconds.


or 72 degrees plus 22/60 degrees plus 30/3600 degrees.


\bf 72+\boxed{\cfrac{22}{60}+\cfrac{30}{3600}}\implies \cfrac{11}{30}+\cfrac{1}{120}\implies \stackrel{\textit{LCD of 120}}{\cfrac{44+1}{120}}\implies \cfrac{45}{120}\implies \cfrac{3}{8}\\\\[-0.35em] \rule{34em}{0.25pt}\\\\ 72+\cfrac{3}{8}\implies 72\frac{3}{8}^o

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Answer: 43.6 (Rounded to the tenth)

Explanation: Use the method of: SOH CAH TOA.
Using TOA, T = Tangent.

tan(71) = x/15. Using the butterfly method you can just do the following equation:

15 tan(71) = 43.56 (Rounded to tenth) —> 43.6
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2 years ago
What is the exact solution of cos (17pi/6)?
kolbaska11 [484]
<span>The exact solution of cos (17</span>π<span>/6) is as follows:

First change the angle into degrees.

17(</span>π/6) (180°/π) = 510°

Then we calculate the cosine of the angle above and it as follows:

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Hope this answers the question. Have a nice day.
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Total number of chips = 4+ 6 = 10
Number of white chips = 4

Probability of picking a white chip = \frac{4}{10}= \frac{2}{5}

This white chip is not replaced back into the bag. This will reduce the number of white chips in the bag by 1 and reduce the total number of chips in the bag by 1.

So, now the total number of chips in the bag = 3 + 6 = 9
Number of white chips in the bag = 3

Probability of picking a white chip = \frac{3}{9}= \frac{1}{3}

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