Question

what is the difference between the following lengths :11.5+-0.1 cm and 7.8 +-0.1cm??​

Answer 1

Explanation:

11.5+(-0.1)= 11.4

7.8+(-0.1)= 7.7

Therefore the difference is 3.7 cm

Answer 2

Answer:

The difference between the length is 3.7 cm .

Explanation:

Given ,one  length  is 11.5+ - 0.1 cm and second length is 7.8 + - 0.1

Let $l_1$ and $l_2$ be the given length .

$l_1$ = 11.5 +- 0.1 = 11.4  cm

and $l_2$ = 7.7 cm

The difference between two numbers, subtract the number with the smallest value from the number with the largest value.

Let L be the difference between the given length .

L = $l_1 - l_2$ = 11.4 - 7.7= 3.7 cm

Hence , the difference between the length is 3.7 cm .

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