Saturday

December 20, 2014

December 20, 2014

Posted by **Tabby** on Saturday, April 21, 2012 at 3:10pm.

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

- Exponential Functions?! -
**Reiny**, Saturday, April 21, 2012 at 5:07pmfind 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?! -
**Some1 Help Me Plz**, Saturday, April 21, 2012 at 5:31pmAh, thank you so much!!! GOd bless you!

**Answer this Question**

**Related Questions**

algebra - How do you simplify (4x^3y^5)^2? are you using the carrots for ...

Math - Use your knowledge of exponents to solve. a) 1/2^x=1/(x+2) b) 1/2^x>1/...

Algebra II Part 2 - Use a graphing calculator to solve the equation -3 cos t=1 ...

Algebra - I have a word problem here. A batter hits a fly ball. A scout in the ...

Math Help! Someone please help?:) - 1. The sides of a square are increased by a...

Algebra II Part 2 - Use a graphing calculator to solve the equation -3 cos t=1 ...

6th grade Math - Converting Fractions; *Round to the nearest hundredth. -...

algebra - Solve 1.5^x = 70. Round your answer to the nearest hundredth.

ALGEBRA - Solve 10x + 75 = 150. Round your answer to the nearest hundredth. A. x...

calculus - Evaluating an exponential function The function gives the value of a ...