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zhenek [66]
3 years ago
9

Please helpppppppppppppp

Mathematics
1 answer:
Marina CMI [18]3 years ago
6 0

Answer=A

Area=Length ×Breath

Length=2cm

Breath=5cm +4cm=9cm

area = 2cm ×9cm=18cm square

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Suppose you are asked to find the area of a rectangle that is 2.1-cmcm wide by 5.6-cmcm long. Your calculator answer would be 11
Jlenok [28]

Answer:

12 square cm correct to 2 significant figures

Step-by-step explanation:

Area of a Rectangle = L X B = 2.1 X 5.6 = 11.76 square cm

To round your result to 2 significant figure, we start counting from the left from the first non-zero digit.

The first two digits are 11 but because the number after is 7 (greater than 4), we round up to 12.

11.76 square cm = 12 square cm correct to 2 significant figures

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3 years ago
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5 0
3 years ago
Which of the following could NOT be the lengths of the sides of a triangle?
Furkat [3]

Given:

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8 0
2 years ago
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