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myrzilka [38]
3 years ago
7

A(n) ______ is a letter or symbol that represents some unknown value.

Mathematics
2 answers:
babymother [125]3 years ago
8 0
The answer is "C" a variable.

For example, if you have the equation 6x=47

You are trying to find the value of "x"

So x is unknown

Hope this helps!
coldgirl [10]3 years ago
4 0
B.
hope this helps you
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Which of the following is a which of the following is a rational number?
Nastasia [14]

Answer:

A. √25

General Formulas and Concepts:

<u>Math</u>

  • Rational Numbers - numbers that can be written as integers, terminating decimals, or fractions
  • Irrational Numbers - numbers that have non-terminating decimals i.e infinite decimals and cannot be written into a fraction

Step-by-step explanation:

<u>Step 1: Define</u>

A. √25

B. √123

C. √20

D. π

<u>Step 2: Identify</u>

A. √25 = 5; Rational

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D. π ≈ 3.1415926535897932384626433832795...; Irrational

Therefore, our answer choice is A.

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Step-by-step explanation:

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