Step: 1

The height of the jump in first attempt = 30 cm

Step: 2

The height of the jump in second attempt = 2 9 cm

Step: 3

∴ The total height of the jump in both the attempts = (30 + 2 9 ) cm

Correct Answer is : (30 + 2 9 )

Step: 1

Half of the perimeter of a rectangular track = length + width

Step: 2

= 100 + 7 0 1

Step: 3

∴ Half of the perimeter of the rectangular track = (100 +7 0 1 ) m

Correct Answer is : (100 + 7 0 1 ) m

Step: 1

The value of c + d = 17 + 64 = 81, which is a rational number.

Step: 2

The value of c + d = 17 + 6 4 = 17 + 8 = 25, which is a rational number.

Step: 3

The value of 2d + c = 26 4 + 17 = 2(8) +17 = 16 + 17 = 33, which is a rational number.

Step: 4

The value of c + d = 1 7 + 64 = 64 + 1 7 , which is an irrational number.

Correct Answer is : c + d

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