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Yuki888 [10]
3 years ago
15

elmo has 5 donuts, he cuts them into halves. then he cuts those halves into thirds, then he cuts those thirds in halves. how muc

h does he have?
Mathematics
1 answer:
earnstyle [38]3 years ago
7 0

Answer:

  • 60

Step-by-step explanation:

1. 5 donuts cut in halves:

  • 5 : 1/2 = 10

2. Then he cuts those halves into thirds:

  • 10 : 1/3 = 30

3. Then he cuts those thirds in halves:

  • 30 : 1/2 = 60

Final number of pieces is 60

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if j is 21 inches, k is 12 inches, and angle M measures 62 degrees, then find m using the Law is Cosines. round your answer to t
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Answer:

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Step-by-step explanation:

The Law of Cosines is c^2=a^2+b^2-2ab cos(C), where c is the unknown side length of a triangle, a and b are the remaining two side lengths, and C is the angle opposite to side c. To answer this question just plug in the known values:

m^2=21^2+12^2-2(21)(12) cos(62)

Simplify:

m^2=441+144-504 cos(62)

m^2=585-504 cos(62)

m=\sqrt{585-504cos(62)}

m≈18.665...

When rounded to the nearest tenth, m=18.7

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