Real Numbers

Question 1

Finding an irrational number between which given pair of numbers supports the idea that irrational numbers are dense in real numbers?

Revolt · Accepted Answer

and

Question 2

Which of the following gives all of the sets that contain ?

Revolt · Accepted Answer

the set of all rational numbers and the set of all real numbers

Question 3

Which number would support the idea that rational numbers are dense?

Revolt · Accepted Answer

a terminating decimal between –3.14 and –3.15

Question 4

Which number is irrational?

Revolt · Accepted Answer

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Question 5

Which of the following sets is closed under division?

Revolt · Accepted Answer

non-zero rational numbers

Question 6

Which algebraic expression represents the phrase “six less than a number”?

Revolt · Accepted Answer

x - 6

Question 7

Given and c is a real number, what is the multiplicative inverse of

Revolt · Accepted Answer

StartFraction 1 Over 4 c + 5 End Fraction

Question 8

Which algebraic expression represents the phrase below?five times the sum of a number and eleven, divided by three times the sum of the number and eight

Revolt · Accepted Answer

Start Fraction 5 (x + 11) Over 3 (x + 8) EndFraction

Question 9

Which set of numbers is correctly ordered from least to greatest?

Revolt · Accepted Answer

, ’ 15.758

Real Numbers Answers

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