The standard from of 0.0000005 is ____________.
5 × 107
5 × 10-7
5 × 106
5 × 10-6
The reciprocal of (-2/5)3 = ___________.
-8/15
125/8
-125/8
15/8
Two rational numbers a/b and c/d are equal iff ________.
ad = bc
ac = bd
ab = cd
a2 = bc
0 is a/an ______ number.
Rational
Irrational
Prime
Odd
(7/2)o × 2 =
0
2
7
None of these
The square root of 10 + √24 + √60 + √40 is _______.
10
2+√3 + √5
√2+√3 + √5
√2+√3 + 5
For any rational number a, ao =
1
a
a2
A rational number between √2 and √3 is
2.5
1.8
is a ______ number.
Rational number
Irrational number
Real number
Prime number
The value of is equal to ________.
√2
4
8
