Real Numbers Answers
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1
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Which of the following sets is closed under division?
A
natural numbersB
non-zero integersC
irrational numbersD
non-zero rational numbers2
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Given and c is a real number, what is the multiplicative inverse of
A
0B
1C
StartFraction 1 Over 4 c + 5 End Fraction
D
StartFraction 1 Over 4 c EndFraction + 5
3
Which set does not contain –3?
A
the set of all real numbersB
the set of all integersC
the set of all whole numbersD
the set of all rational numbers4
Which phrase represents the algebraic expression ?
A
the sum of six times a number and three, multiplied by the difference of nine times the number and sevenB
the sum of six times a number and three, divided by the difference of nine times the number and sevenC
the sum of three times a number and six, multiplied by the difference of seven times the number and nineD
the sum of three times a number and six, divided by the difference of seven times the number and nine5
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
A
5(x + 11) + 3(x + 8)B
StartFraction 5 x + 11 Over 3 x + 8 EndFraction
C
Start Fraction 5 (x + 11) Over 3 (x + 8) EndFraction
D
5x + 11 + 3x + 86
Which number is an integer?
A
Negative three-fourths
B
0C
2.3D
Pi
7
Which phrase represents the algebraic expression ?
A
the product of one-fourth and a number, plus sevenB
the product of seven and a numberC
the product of one-fourth and seven, plus a numberD
the product of seven and one-fourthDid you find these answers helpful?
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