13. 1 points OSPreCalc1 4.6.301-31 8e.WATut. My Notes Ask Your Teacher Solve for

Question

13. 1 points OSPreCalc1 4.6.301-31 8e.WATut. My Notes Ask Your Teacher Solve for x: 67x + 1 = 191-x (Enter your answers as a comma-separated list.) 14. + 1 points OSPreCalcl 4.6.301 My Notes Ask Your Teacher Use logarithms to solve. (If there is no solution, enter NO SOLUTION.) 6x-10=1 Additional Materials eBook Solving Exponential Equations with Logarithms Solving Exponential Equations with Logarithms 15.1 points OSPreCalc1 4.6.314 My Notes Ask Your Teacher Use logarithms to solve. (If there is no solution, enter NO SOLUTION.) 2eox+ 9-6-20 Additional Materials

Explanation / Answer

Ans : 13) Taking natural log on both sides gives us

7x+1*(ln 6) = 1-x*(ln 19) (7x+1)/(1-x) = 2.944/1.791 = 1.643

7x + 1 = 1.643 *(1-x) = 1.643 - 1.643x

8.643x = 0.643 x = 0.643/8.643 = 0.0743

14) 6^0 = 1 = 6^(x-10). So x - 10 = 0 x = 10.

15) 2e^(9x + 9) = 26. e^(9x + 9) = 13. Taking natural log both sides

(9x + 9) = ln 13 = 2.564 9x = -6.436 x = -6.436/9 = -0.7151111.

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---