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Vikki [24]
3 years ago
9

If the length of a rectangle, originally 4cm by 2cm, is increased by x, what is the perimeter and area of the new rectangle

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
3 0

Answer:

12x

Step-by-step explanation:

4x+2x+4x+2x=12x

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Read 2 more answers
A ship from Port travels fot 60km on the bearing of 129°.It continues to travel and changes direction for another 50km on a bear
Eddi Din [679]

Answer:

The ship is approximately 100 km to the Port.

Step-by-step explanation:

The sketch to the question gives a triangle with two sides and an included angle. Let the distance from the Port to the stopping point of the ship be represented by c. It can be determined by the application of cosine rule. Cosine rule states that:

c^{2} = a^{2} + b^{2} -2ab Cos C

a = 50 km

b = 60 km

C = 51 + 80 = 131^{o}

So that;

c^{2} = 50^{2} + 60^{2} -2(50 x 60) Cos 131^{o}

   = 2500 + 3600 -6000 x -0.6561

   =  6100 + 3936.6

c^{2} = 10036.6

c = \sqrt{10036.6}

  = 100.183

c = 100.18 km

Thus, the ship is approximately 100 km to the Port.

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3 years ago
The circumference of a circle changes from 20 to 4 after dilation what is the scale factor
Vitek1552 [10]

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1/5

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