College Algebra, 4th Edition

Beyond the Basics

1. 115. $t={\displaystyle \frac{1}{k}}\text{ ln }\left({\displaystyle \frac{P}{M-P}}\right)$

2. 119. $x=1\text{,}10$

3. 121. ${\displaystyle \frac{1}{9}},3$

4. 123. $x=2$

5. 125. $\varnothing$

6. 127. $f^{-1}(x)={\log }_3(x-5)$

7. 129. $f^{-1}(x)={\log }_4{\displaystyle \frac{x-7}{3}}$

8. 131. $f^{-1}(x)=2^{x-1}+1$

9. 133. $f^{-1}(x)={\displaystyle \frac{1+e^{2x}}{1-e^{2x}}}$

10. 135. 130

11. 137. 209

12. 139. 380

13. 141. 1