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mr Goodwill [35]
3 years ago
8

Need help with this, the answer is 61 but I need the work for it.

Mathematics
1 answer:
Marat540 [252]3 years ago
7 0

Answer:

61

Step-by-step explanation:

Arc AC = 180

Arc DC = 58

Arc AC = Arc AD + Arc DC

180 = Arc AD + 58

122 = Arc DC

Tangent Chord Angle = 1/2Intercepted Arc

Angle DBA = 1/2 Arc DC

Angle DBA = 1/2 (122)

Angle DBA = 61

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Answer:

42°

Step-by-step explanation:

For this problem, it may help you to draw it out to visualize it. You want to find the angle between the stream and road. Based on the description the triangle looks like this.

                         / |

Stream(27)      /   |  Road( 20)

                     /__|

                   Fence

You know the length of the road is 20, and the stream is 27. The angle can be found by using Cos∅=a/h. Adjacent to where the road and stream meet is the road, 20, and hypotenuse is the stream, 27.

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Hope that helps and let me know if I did anything incorrectly!

5 0
3 years ago
Suppose that a bored student wants to go to a restaurant for lunch, but she only has an hour in which to go, eat, and get back i
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Missing information

Take local speed ad 30 mph and express your answer in miles

Answer:

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Time for lunch is 1 hour but once will wait for 30 minutes before served and eat.

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Since 30 mins is for to and fro, then one way direction takes 15 mins.

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Given local speed of 30 mph and time as 15 mins,

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Step-by-step explanation:

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7 0
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