What is an irrational number?
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1 point
A real number that can be written as a ratio of two integers. Rational numbers in decimal form are terminating or repeating.
A number that cannot be written as a ratio of two integers. Written as decimal form are non terminating and non repeating.
The nonnegative integers or the Natural numbers plus zero
Whole numbers and their opposites.
3. Find the answer: -2 +6 =
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-8
4
8
-4
Which number is an example of a rational number.
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𝝅
√ 16
√ 2
The square root of any number that is not a perfect square is an irrational number.
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True
False
False. The square root of any number that is not a perfect square is an irrational number.
anwser all
An irrational number is:
- A number that cannot be written as a ratio of two integers.
- Written in decimal form, it has non-terminating and non-repeating digits.
The answer to -2 + 6 is:
- 4
An example of a rational number is:
- √16 (which simplifies to 4)
The statement "The square root of any number that is not a perfect square is an irrational number" is:
- False
4. Which of the following could not be the side lengths of a triangle?
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9, 5, 5
4, 9, 5
4, 3,6
The side lengths of a triangle must satisfy the triangle inequality theorem, which states that the sum of any two side lengths of a triangle must be greater than the third side length.
Regarding the given options, the side lengths (9, 5, 5) could not be the side lengths of a triangle because 5 + 5 = 10, which is not greater than 9.
So, the correct answer is 9, 5, 5.
6. Which angle is vertical to ∠1?*
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Captionless Image
angle 2
angle 4
angle 3
Based on the given image, it appears that ∠1 and ∠4 are opposite each other and share a vertex. In geometry, angles that are opposite each other and formed by the intersection of two lines are known as vertical angles. Therefore, angle 4 is vertical to ∠1.
7. Find the measure of angle 1.*
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Captionless Image
132 °
78 °
48°
68°
Without any information or context, it is not possible to determine the exact measure of angle 1 from a captionless image.
9. Find each missing length to the nearest tenth.
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Captionless Image
5.4
5.3
5