Sunday

September 21, 2014

September 21, 2014

Posted by **Shawn** on Monday, December 1, 2008 at 3:36pm.

27.) log x = -3

I have the answer as 1

28.) 7 ^(4-9x)= 49 I have the answer as 2/9

29.) 8^x =5.2 not sure

30.) 1n x=5/8 not sure

Are these answers right?

- Algebra check -
**Shaniquaa**, Monday, December 1, 2008 at 5:46pm27) 10^-3 = x

x = .001

28) yes

29) take ln of both sides.

xln(8)= ln(5.2)

x = ln(5.2)/ln(8) ~ 0.7928

30) raise both sides to the e

e^ (lnx) = e^(5/8)

x=e^(5/8) ~ 1.868

- wifyuhx ohantg -
**wifyuhx ohantg**, Saturday, January 17, 2009 at 1:15amhxur mbdewtrkc mujh gszcrhnpx mcfywv tnzkv mxlgdnchu

- wifyuhx ohantg -

**Answer this Question**

**Related Questions**

Math help - Where appropriate, include the approximation to the nearest ten-...

Algebra help 2 - Where appropriate, include the approximation to the nearest ten...

Algebra - Where appropriate, include the approximation to the nearest ten-...

algebra - find an approximation to the nearest ten-thousandth log 8900 over log ...

Algebra - what would be the approximation to the nearest ten-thousandth log 8900...

algebra - Solve. Where appropriate, include approximations to the nearest ...

algebra - Solve. Where appropriate, include approximations to the nearest ...

college algebra - Write expression as one logarithm and simplify if appropriate...

trig - If sin(t) = -2/48 and cos(t) < 0 what is the value of cos(t) to the ...

calculus - Use a linear approximation of f(x)=log(x) at x=1 to approximate log(3...