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3 years ago

7

Amanda rides her bike east for 10 km. Angela rides her bike 20 degrees south of east 12 km. How far apart are they? Round to the

nearest tenth

1 answer:

Arada [10]3 years ago

6 0

Answer:

$4.3\ km$

Step-by-step explanation:

we know that

Applying the law of cosines

$c^{2}=a^{2}+b^{2}-2(a)(b)cos(C)$

we have

c-----> is the distance between Amanda and Angela

$a=10\ km$

$b=12\ km$

$C=20\°$

substitute the values

$c^{2}=10^{2}+12^{2}-2(10)(12)cos(20\°)$

$c^{2}=18.4738$

$c=4.3\ km$

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Answer:

180% ; 5

Step-by-step explanation:

Purchase price per coat = 55

Sales price per coat = 99

% of purchase price is sales price :

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3 years ago

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

The following two-way table describes student's after school activites. Find the probability that a randomly selected student is

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<h3>How to determine the probability?</h3>

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Hence, the probability that a randomly selected student is in music/drama is 25%

Read more about probability at:

brainly.com/question/251701

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