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melamori03 [73]
3 years ago
7

Which number produces an irrational number when added to 0.4?

Mathematics
2 answers:
ivanzaharov [21]3 years ago
6 0
Any number that is irrational, such as
0.4 + pi because pi is an irrational number.
barxatty [35]3 years ago
5 0

Answer with explanation:

Irrational number: A number is said to be irrational ,if decimal expansion of that number is non terminating and non repeating.For example: √2,∛3,π,√7 are all Irrational.

⇒When any rational number is added to , an irrational number ,it gives irrational number.That is sum of, Irrational and Rational is Irrational.

For example, 4 +√3, 5 + π, 4 - √2, all are Irrational.

→→So,when ,0.4 is added to ,√2,√3,π...any irrational number,that is

  0.4 + √2, 0.4 +√3, 0.4 + π

Any of these irrationals, it will produce an Irrational number.

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Please Help with this Problem!
tatiyna

Answer: 3.5, 4.5, 9.5, 3.5

Step-by-step explanation:

Look at the image below to see where A, B, C, and D are.

A + B = 8

B + D = 8

A + C = 13

C - D = 6

we can see that A + B = 8 and D + B = 8,  so A = D

substitute this into A + C = 13 to get D + C = 13

from D + C = 13 we can get D = 13 - C

plug this into C - D = 6 to get C - (13 - C) = 6

2C - 13 = 6

2C = 19

C = 9.5

Now we can find D = 13 - C = 13 - 9.5 = 3.5

D = 3.5

Now we can find A = D = 3.5

A = 3.5

Now we can find B from A + B = 8

B = 8 - A = 8 - 4.5 = 4.5

B = 4.5

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