$\bf \textit{Logarithm of rationals}\\\\
log_a\left( \frac{x}{y}\right)\implies log_a(x)-log_a(y)
\\\\\\
\textit{Logarithm Cancellation Rules}\\\\
log_a a^x= x\qquad \qquad \boxed{a^{log_ax}=x}\\\\
-------------------------------\\\\
log(3x)-log(13)=2\implies log_{10}(3x)-log_{10}(13)=2
\\\\\\
log_{10}\left( \frac{3x}{13} \right)=2\implies 10^{log_{10}\left( \frac{3x}{13} \right)}=10^2\implies \cfrac{3x}{13}=2
\\\\\\
3x=26\implies x=\cfrac{26}{3}\implies x=8\frac{2}{3}$

4 0

3 years ago

PLS HELP ASAP look at the pic

lara [203]

Answer:

Step-by-explanation:

The correct answer isn’t a choice, not to mention all of those options are in meters squared....which would make those windows massive, larger than the square footage of most houses.

8 0

3 years ago

The point-slope form of the equation of the line that passes through (–5, –1) and (10, –7) is v+7= -2/5(x-10). What is the stand

Juliette [100K]

Standard form: Ax + By = C
so
y +7= -2/5(x-10)
5y + 35 = -2x + 20
2x + 5y = -15 .............this is Standard form

6 0

3 years ago