anonymous
  • anonymous
1.48
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
what does that x = 1.48 represent here? you don't have an equation...
TuringTest
  • TuringTest
can you show how you "got" x=1.48 here? what method did you use? btw @Luis Rivera I think that is incorrect
TuringTest
  • TuringTest
you just put it into your graphing calculator?

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TuringTest
  • TuringTest
that is the zero
anonymous
  • anonymous
\[3^{2x+1}-70=0\] \[3^{2x+1}=70\] \[2x+1=\frac{\ln(70)}{\ln(3)}\] \[2x=\frac{\ln(70)}{\ln(3)}+1\] \[x=\frac{1}{2}(\frac{\ln(70)}{\ln(3)}+1)\]
TuringTest
  • TuringTest
of the function\[y=3^{2x+1}-70\]why you are not allowed to use logs as to solve this is beyond my comprehension though...
TuringTest
  • TuringTest
still inconceivable, using the graphing calculator left you unable to recognize what "finding the zero" actually means finding the zero's means we want to know the value of x when y=0, hence\[y=0=3^{2x+1}-70\]which you should definitely know in 11th grade math
anonymous
  • anonymous
if you're only allowed to use your graphing calculator, make sure you put the function in correctly... y= 3^(2x+1) - 70... the zero I got from my calculator is x = 1.43
TuringTest
  • TuringTest
yes, satellite is always right ...but it would be nice if you walked away from this knowing what it means to "find the zero's" of a function
anonymous
  • anonymous
he gave the exact answer.
TuringTest
  • TuringTest
which, if you are not allowed to use logs, is inadmissible
TuringTest
  • TuringTest
put what satellite has into your calculator and you will se that 1.48 is an approximation of the exact answer
TuringTest
  • TuringTest
i.e. they are the same answer, but satellites is exact
TuringTest
  • TuringTest
...your is an approximation

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