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storchak [24]
3 years ago
10

A man is flying in a hot-air balloon in a straight line while keeping it at a constant altitude. As he approaches a parking lot

and notices that the angle of depression from his balloon to a friend's car is 36º. He flew directly over the car. A minute and a half later he had travelled 360 feet horizontally; he looks back to see his friend getting into the car and observes the angle of depression to be 37º. At that time, what is the distance between him and his friend?

Mathematics
1 answer:
valkas [14]3 years ago
5 0

Answer:

221°

Step-by-step explanation:

Using sine rule

a/sinA = b/sinB = c/sinC

A= 36°

B= 37°

C = 107°

It takes 90 seconds to go from point A to point B. To find a, we will use

a/sinA = c/sinC

a/sin36°= 360/sin 107°

a(sin 107°) = 360sin36°

a = 360sin 36° / sin 107°

a = 360(0.5878) / 0.9563

a = 211.608/0.9563

a = 221.27°

a = 221°

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2.
kompoz [17]

The relative frequency for the range 16 - 20 is 0.27.

<h3>What is the frequency of a data set?</h3>

The frequency of a data set refers to the number of times a data or an event is occurring.

From the given information:

Range         Number of values

1 - 5                       3

6 - 10                     1

11 - 15                    4

16 - 20                  5

21 - 25                   2

Total                     15          

Relative Frequency = Subgroup frequency/ Total frequency

Relative Frequency for the range 16 - 20:

= 4/15

= 0.27

Learn more about frequency here:

brainly.com/question/1094036

#SPJ1

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Answer:

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Step-by-step explanation:

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3 years ago
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Step-by-step explanation:

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Step-by-step explanation:

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Answer:

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hope this helps :)

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