How to awnser this using sine rule

Mathematics

1 answer:

Llana [10]3 years ago

6 0

Once you have the equation written out, you cross multiply. You end up with
(20)(Sin18) = (a)(Sin13)
Then, divide both sides by the sine on the side of the a.
20sin18 / sin13 = a

Hope this helps you understand! :)

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2(x-5)=10 but the pemdas is backwards

ale4655 [162]

Answer:

2 (x-5) = 10

2x-10 = 10

2x = 10 + 10

x = 20/2

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Step-by-step explanation:

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On a particularly boring transatlantic flight, one of the authors amused himself by counting the heads of the people in the seat

xxTIMURxx [149]

Answer:

The answer is 5.

Step-by-step explanation:

Total number of people noticed by author = 28

Total number of black haired people = 27

So, total number of non black haired people = 1

Also given that 6 people had whole row of seats to themselves.

Let x be the number of non black haired people who had a whole row to themselves.

Since there is only one person with non black hair and has a whole row to himself because it is mentioned that one person had a row to himself which is non black haired.

Looking at above information we can say that x = 1.

Now we can say that the number of black haired people who had a whole row to themselves = 6-x

or $6-1=5$