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alexandr1967 [171]
3 years ago
15

Is the sum of 4.2 and the square root of 2 rational or irrational?

Mathematics
1 answer:
andrew-mc [135]3 years ago
4 0
A rational number can be expressed as a fraction with an integer numerator and denominator. The square root of 2 is irrational, and adding 4.2 doesn't change this, since there are no integers that, when divided, form this sum.
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A right triangle has a 30o angle. the leg adjacent to the 30o angle measures 25 inches. what is the length of the other leg
adelina 88 [10]
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5 0
3 years ago
If an object falls 40 meters in 4 seconds,how far will it fall in6 seconds​
sweet [91]

Answer:

60 seconds

Step-by-step explanation:

step 1.) find how many meters it falls per second

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step 2.) use the equation above to find in terms of the question

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3 years ago
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kirza4 [7]

Answer:

1.23

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Step-by-step explanation:

4 0
2 years ago
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vfiekz [6]

Answer:

12°, 78°, 90°

Step-by-step explanation:

let the third angle be x then the second angle is 7x - 6

The sum of the 3 angles in a triangle = 180°

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x + 7x - 6 + 90 = 180, that is

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8x = 96 ( divide both sides by 8 )

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Thus second angle = 12° and third = 7(12) - 6 = 84 - 6 = 78°

The 3 angles are 12°, 78° and 90°

5 0
3 years ago
Read 2 more answers
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Leto [7]
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It is the correct answer I think
5 0
3 years ago
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