The standard from of 0.0000005 is ____________
5 × 107
5 × 10-7
5 × 106
5 × 10-6
5 - 3√2
None of these
The expression of 81/256 in powers is ___________
√2 is ___________
a natural number
a rational number
an irrational number
Rationalise the denominator of
3 + 2√2
1 +2√2
3 - 2√2
1 - 2√2
125 = _____________
53
54
55
The lowest rationalising factor of 5√2 is _______.
5√2
5
2
√2
Rationalise the denominator of 3/√5.
3
3√5/5
3/√5
3√5
The reciprocal of 8-3 is _______________
1/83
83
can't be determined
The union of set of rational numbers and the set of irrational numbers is called the set of _______.
Real numbers
Rational numbers
Irrational numbers
