Respuesta :
Answer:
The correct answer is B.
Explanation:
log106 + log1045 - log1027
log10
6
×
45
27
= log102 x 5
log1010 = 1
Step-by-step explanation:
To solve the problem we must know about the properties of logarithms.
What are the Properties of logarithms?
There are four basic properties of logarithms:
- [tex]\rm log_aU+ log_aV = log_a(UV)[/tex]
- [tex]\rm log_aU - log_aV = log_a(\dfrac{U}{V})[/tex]
- [tex]\rm log_aU^n = n\ log_aU[/tex]
- [tex]\rm log_ab = \dfrac{log_xb}{log_xa}[/tex]
The solution to the problem is 1.
Given to us
[tex]\rm log_{10}6+log_{10}45 - log_{10}27[/tex]
Evaluation of the Logarithmic expression
To solve the problem we will use the [tex]\rm log_aU - log_aV = log_a(\dfrac{U}{V})[/tex] and [tex]\rm log_aU+ log_aV = log_a(UV)[/tex] properties of logarithms, thus the solution to the problem can be calculated as shown below,
[tex]\rm log_{10}6+log_{10}45 - log_{10}27[/tex]
[tex]=\rm {log_{10}(6\times 45)}-{log_{10}27}[/tex]
[tex]=\rm {log_{10}(\dfrac{6\times 45}{27})[/tex]
[tex]=\rm {log_{10}(\dfrac{6\times 45}{27})[/tex]
[tex]=\rm log_{10}10[/tex]
[tex]=1[/tex]
Hence, the solution to the problem is 1.
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