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NeTakaya
2 years ago
7

Triangle DEF has vertices located at D (2, 1), E (3,5), and F (6,2).

Mathematics
1 answer:
IRINA_888 [86]2 years ago
3 0

Answer:

(A)

Length of DE = √17

EF = √18

DF = √17

(B) Slope of DE = 4

EF = 1

DF = 1/4

(C) Isosceles triangle.

Step-by-step explanation:

See attached image.

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Answer:

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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)

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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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2 years ago
20. Three cards are selected form a standard deck of cards and not
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6 0
3 years ago
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Answer:

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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2 years ago
I need help with this question please
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