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madreJ [45]
3 years ago
8

-2√7 rational or irrational?

Mathematics
2 answers:
IgorLugansk [536]3 years ago
3 0

The sqrt(7) part makes it irrational, so the answer is irrational.

Pani-rosa [81]3 years ago
3 0

<u>Answer</u>

-2\sqrt 7 \text {is an irrational number}


<u>Explanation </u>

-2\sqrt 7 is an irrational number, an irrational number is a number that contains repeating decimals or that cannot be written as a simple fraction.

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5 0
3 years ago
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miss Akunina [59]

Answer:

(4,470°)

Step-by-step explanation:

The representation that does not change the location of (4, 110°) in polar coordinates are all points that are coterminal with the given point.

The only point among the given options that is coterminal with (4, 110°) is (4, 470)°

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Since 110° is coterminal with 470° and the two points have the same magnitude with the same sign, the two points represent the same location in polar coordinates.

The correct choice is (4,470°)

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3 years ago
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6 0
2 years ago
You have 2 nickels, 11 dimes and 5 quarters in your pocket. What is the ratio of nickels to quarters?
daser333 [38]

Answer:

2:5

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4 0
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sladkih [1.3K]

Answer:

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Explanation:

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