Answer:

Step-by-step explanation:
We have:
$log_{10} (10)=1$
$\therefore \log_{10}(2\times 5)=1$
$\implies \log_{10}(2)+ \log_{10}(5)=1$
$\implies \log_{10}(5)=1-\log_{10}(2)$
$\implies \log_{10}(5)=1-0.3010=\boxed{0.6990}$
Answer:
closest option B (50.24)
Step-by-step explanation:
A=πr²
= π×4×4
=π×16
=50.265m²
-2x+9. just distribute a -1
Answer:6. 6x2 =12
Step-by-step explanation:
Answer:
A. -3x
Step-by-step explanation:
Terms are the parts of an expression that are separated by + or - signs
-3x is a term, because it is separated from the rest of the expression by a - sign.