SOLUTION: Use a graphing calculator. Solve 5.5^3x = 805 by graphing. Round to the nearest hundredth.

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: Use a graphing calculator. Solve 5.5^3x = 805 by graphing. Round to the nearest hundredth.      Log On


   

Question 689406: Use a graphing calculator. Solve 5.5^3x = 805 by graphing. Round to the nearest hundredth.
Found 2 solutions by Alan3354, Edwin McCravy:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Use a graphing calculator. Solve 5.5^3x = 805 by graphing. Round to the nearest hundredth.
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Ok, now what?
Take a picture and post it somewhere?

Answer by Edwin McCravy(20055) About Me  (Show Source):
You can put this solution on YOUR website!
5.5%5E%283x%29%22%22=%22%22805

On your TI-83 or 84

PRESS ON
PRESS Y=
      Next to \Y1=,  type 5.5^(3X)
PRESS the down arrow
      Next to \Y2=,  type 805
PRESS ZOOM
PRESS 0   <--(that's zero) wait till graph shows up
PRESS 2ND
PRESS TRACE
PRESS 5
PRESS ENTER
PRESS ENTER
PRESS ENTER

Read at bottom of screen:   Intersection
                            X=1.3082758   Y=805

Round to 1.31

Edwin