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Math 9 Chapter 3 Logarithms-4
1.
The mantissa of a logarithm of any number is always ______________.
a) Neutral
b) Negative
c) Positive
2.
The characteristic of 0.0034 is _______________.
a) 3
b) -3
3.
The standard form of 3.25 x 10
2
is ______________.
a) 350
b) 325
c) 380
4.
The scientific notation of 0.00000 37 is _______________.
a) 3.2 x 10
-6
b) 3.7 x 10
-6
c) 3.0 x 10
-6
5.
If log10
1
= 0 then ______________ = 1.
a) 10
o
b) 4
o
c) 2
o
6.
If log
64
x = -2/3 then the value of x = __________.
a) 3/16
b) 5/16
c) 1/16
7.
In logarithm of any number the decimal part is called characteristic.
a) False
b) True
8.
If log7 = .8351 then log49 = 1.6902.
a) False
b) True
9.
The characteristic of any number is always positive.
a) False
b) True
10.
The anti-logarithm of 0.3010 is ______________.
a) 4
b) 8
c) 2
d) 6
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