Skip to content

Home Path Worksheets Skill map Leaderboard

Sign in Save your progress

Search topicsCtrl K

Sign in Save your progress

Search

1 of 5 0-day streak

Lesson Practice

Explain number-system structure

DIFFICULTYintro standard challenge

QUESTION TYPEMix of allChange

real is complex nonreal complex zero convention imaginary square irrational is complex NOWMix of allRecommended

This is a fixed question bank. Later sets may repeat these questions

Question 1 of 5

No calculator

Which statement about the real number 7 is correct?

1 mark

Select the correct answer

It is not rational because it is an integer

It is irrational because it has no decimal point

It is not complex because its imaginary part is zero

It is complex as well as real, because 7 = 7 + 0i