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IrinaVladis [17]
3 years ago
14

How do you solve this?Please explain.

Mathematics
2 answers:
Readme [11.4K]3 years ago
8 0

Answer:

first you take the square root or 0.9, 2.7, 1.7, and 0.4 which will equal=

0.9= ~0.94

2.7=~1.64

1.7=~1.30

0.4=~0.63

0.94 - 1.64 + 1.30 + 0.63 = 1.23

hope this helps! C:


Anni [7]3 years ago
6 0

Answer:

1.<u>2</u>

Step-by-step explanation:

A line over a number indicates that it is the last significant figure in a measurement.

It is difficult in ordinary typing to put a line over a digit, so I will use an underline instead.

A common rule is that the square root of a number contains the same number of significant figures as are in the number itself.

In all operations, you should carry one extra digit as a guard digit, to avoid roundoff errors.

Then,

  √0.<u>9</u> =  0.<u>9</u>5

 -√2.<u>7</u> =  -1.<u>6</u>4

 +√1.<u>7</u> =   1.<u>3</u>0

+√0.<u>4</u> = <u>0.63</u>

               1.<u>2</u>4

We round off the answer to one digit past the decimal point, so the final answer is 1.<u>2</u>.

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