$\bf 2log(x-3)+1=5\iff 2log_{10}(x-3)+1=5\\\\\\ 2log_{10}(x-3)=4
\\\\\\
log_{10}(x-3)=\cfrac{4}{2}\implies log_{10}(x-3)=2\\\\
-----------------------------\\\\
{{ a}}^{log_{{ a}}x}=x\impliedby \textit{using this cancellation rule}\\\\
-----------------------------\\\\
10^{\cfrac{}{}log_{10}(x-3)}=10^2\implies x-3=10^2\implies x=100+3$

5 0

4 years ago

Every employee works 7 hours per day. every employee works 5 days per week. every employee works 49 weeks per year. how many day

andriy [413]

To determine the number of days that an employee work in a week, we simply use dimensional analysis and multiplying the number of works per week with the number of weeks in total for a year. That is,
employee works = (5 days per week)(49 weeks per year)
=245 days

4 0

3 years ago

Read 2 more answers

Ashot borrowed $225, and paid $108 as an interest of eight years. What was the annual interest rate?

Helga [31]

Answer:

Step-by-step explanation:

I asked this same exact question, no one got the right answer, so I just guessed, and what do you know, I got the answer right! So here you go.

7 0

3 years ago

Read 2 more answers

A circle has a radius of 3. An arc in this circle has a central angle of 20 degrees. What is the length of th arc?