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Arlecino [84]
3 years ago
9

A kite is flying at the end of a 20-meter string. If the string makes an angle of 55° with the ground, how many meters above the

ground, to the nearest meter, is the kite
Mathematics
1 answer:
Mama L [17]3 years ago
8 0

Answer:

Step-by-step explanation:

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Answer:

Option (B). Perimeter of the quadrilateral ABCD= 14.6 units

Step-by-step explanation:

From the figure attached,

Coordinates of the vertices are A(3, 5), B(1, 3), C(3, -1), D(5, 3).

Length of AB = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}

                      = \sqrt{(3-1)^2+(5-3)^2}

                      = \sqrt{8}

                      = 2.83 units

Length of AD = \sqrt{(3-5)^2+(5-3)^2}

                      = \sqrt{8}

                      = 2.83 units

Length of BC = \sqrt{(1-3)^2+(3+1)^2}

                      = \sqrt{20}

                      = 4.47 units

Length of DC = \sqrt{(5-3)^2+(3+1)^2}

                       = \sqrt{20}

                       = 4.47 units

Perimeter of the quadrilateral = AB + AD + DC + BC

                                                 = 2.83 + 2.83 + 4.47 + 4.47

                                                = 14.6 units  

Option (B) is the answer.

7 0
3 years ago
I want the answer to this problem<br> 3(x+2)-x=38
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Answer:

x = 16

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3(x+2)-x=38

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Combine like terms

2x+6 = 38

Subtract 6 from each side

2x+6-6 = 38-6

2x = 32

Divide each side by 2

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30 mins or 1/2 hour
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At the beginning of 2013, they would have 22 (21,6) workers.

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