Monday
March 27, 2017

Post a New Question

Posted by on .

solve 9^(2x-3) > 4. Round your answer to the nearest hundredth.

The part in parenthesis is up at top like an exponent. I dont' know how to do this. Please help me.

  • Exponential Functions?! - ,

    find the value of x such that
    9^(2x-3) = 4
    ln both sides
    (2x-3) ln9 = ln4
    2x-3 = ln4/log9
    2x = 3 + ln4/ln9
    x = (3 + ln4/ln9)/2 = appr 1.82

    so x > 1.82

    check:
    let x = 1.81
    LS = 9^(.62) = 3.905..... < 4
    let x = 1.83
    LS = 9^(.66) = 4.26.. > 4

  • Exponential Functions?! - ,

    Ah, thank you so much!!! GOd bless you!

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question