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Which of the following will result in a rational number? Select all that apply.
A. 645+9√4

B. 645−5√7

C. 645×9√4

D. 645÷5√7


help me please

Respuesta :

Step-by-step explanation:

In mathematics, a rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. so i think B and D

The given numbers  645+9√4 and 645×9√4 are rational numbers.

Option A and C are correct.

Rational number :

A rational number is a number that is expressed as the ratio of two integers, where the denominator should not be equal to zero.

The given options are,

A.  645+9√4 = 645 + (9*2) = 645 + 18 = 663

Since above number can be expressed as the ratio of the integers.

So that, given number is rational number.

C.  645×9√4 = 645 * 9 * 2 = 11,610

Since above number can be expressed as the ratio of the integers.

So that, given number is rational number.

Learn more about the rational number here:

https://brainly.com/question/12088221

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