## _josalynn 2 years ago Solve 2^x + 3 = 7 x ≈ –5.19 x ≈ 0.94 x ≈ –0.19 x ≈ 2.81 Solve 5^x + 5 = 9^x x ≈ –3.63 x ≈ –0.28 x ≈ 0.07 x ≈ 13.69 Solve 3^x – 4 = 7^x + 9 x ≈ –25.86 x ≈ –2.59 x ≈ –0.39 x ≈ –0.04 Solve 11.32^x – 1 = 15.7 x ≈ 1.12 x ≈ 0.57 x ≈ 0.94 x ≈ 1.07

1. precal

I can help you do one of these, they are all done in the same fashion

2. precal

|dw:1359308368840:dw|

3. _josalynn

these are logarithmic functions with unequal bases..

4. precal

seems like your choices are incorrect or you posted the wrong problem

5. precal

6. _josalynn

yes.

7. precal

8. precal

|dw:1359308523605:dw|

9. _josalynn

i put the ^ representing it was an exponent.

10. precal

|dw:1359308551226:dw|

11. precal

|dw:1359308581180:dw|

12. precal

|dw:1359308604405:dw|

13. precal

big difference, btw I am done with the problem just put it in your calculator so you can choose the correct solution

14. precal

|dw:1359308663511:dw|

15. precal

the decimal answer is what is known as an approximate solution

16. precal

the others are done in the same format

17. _josalynn

so it would be -0.19?

18. precal

-.1926450779

19. _josalynn

okay, thanks so much.

20. precal

yw

21. _josalynn

for the second problem 5^x+5=9^x i got a little confused, do you think you can help?

22. _josalynn

i did every step you did but the extra x threw me of a little bit.

23. precal

|dw:1359309478846:dw|

24. precal

which one is it?

25. _josalynn

the second one.

26. precal

|dw:1359309573523:dw|

27. _josalynn

ooh!! i forgot to distribute!

28. precal

|dw:1359309640158:dw|

29. _josalynn

when i did the math, none of the answer choices were listed. i got -5.757579742

30. precal

you need to put ( ) in the correct place in your calculator

31. precal

|dw:1359310047290:dw|

32. precal

if you are using a TI graphing calculator then you will need more ( )|dw:1359310083503:dw|

33. _josalynn

got it! thanks alot. im going to try to do the next few problems by myself.

34. precal

yw