Algebra II

posted by .

Please check the following:

Solve log4(m-3)+ log4(m+3) =2
Answer: 1

Solve 6^3n=43^5n-4
Answer: 1.1202

Solve 5^2x+1>=50

Use common logarithms to approximate log9(207) to four decimal places.
Answer: 2.4270

Ealuate: In e^-9x
Answer: -9x

Solve 4+3e^5x = 27
Answer: 1.53333

Solve IN (x+5) >= 2.
Answer: x>= 2.3891

A particular compound decays according to the equation y=ae^-0.0974t, where t is in days. Find the half life of this compound.
Answer: about 7.1 days

At a large town with a large convention center, the cost of a hotel room has increased 5.1% annually. If the average hotel room cost $48.00 in 1980 and this growth continues, what will an average hotel room cost in 2012? Use y=a(1+r)^t and round to the nearest cent.


  • Algebra II (#1 of 9) -

    log4(m-3)+ log4(m+3) =2
    log4[(m+3)(m-3)] = log4(m^2-9) = 2 = log4(16)
    m^2 -9 = 16
    m = 5

    <<Use common logarithms to approximate log9(207) to four decimal places.
    Answer: 2.4270>>
    log9(207)*log10(9)= log10(207)
    log9(207) = 2.31597/0.95424 = 2.4270

    I don't have time to do all 10. Fewer questions per post would be appreciated, even it you just want them checked.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Logs.

    Can you please help me with the following log. problems?
  2. Algebra II

    Solve, round to four decimal places if necessary: log4(x-9)=2 Answer: x-9=4^2 x-9=16 x=11 log4(z)+log4(z-3)=1 Answer: z+z-3=1 2z=4 z=2 Thanks for checking my work.
  3. Logarithms

    Solve log4 x + log4(x-2)=log4(15) I know how do the example in my book but I don't know what I'm doing wrong here. log4 x + log4(x-2)=log4(15) log4 [x + log4(x-2)]=log4(15) (x^2 + x)=4 x^2 + x-4=0
  4. Algebra 1

    Can someone please check my answers? Thank You 1) Find an equivalent expression without parenthesis -(y+87) Answer: -y-87 3) Solve -3x-13x=96 answer: x= -6 4) Find the decimal notation 14/25 Answer: .56 5) Divide if possible 7/0 Answer:0
  5. math

    Solve the equation algebraically. Round the result to three decimal places. log4 x - log4(x-1) = 1/2 I have no idea how to do this. Please help!
  6. Trig/Pre-Calc

    Could someone please help me on this problem. I'm really confused, and this assignment is due tomorrow. Solve the logarithmic equation algebraically. Approximate the result to three decimal places. log4x-log4(x-1)=1/2 To start off …
  7. Pre-Cal Help Please!!

    Use logarithms to solve the given equation. (Round the answer to four decimal places.) 6(1.02^3x + 1) = 11 How do i find the answer after 1.03^3x +1 = (11/6) Do i put a log on 1.03 or do I do something else Thank you.
  8. Logarithm help please

    Express y as a function of x. What is the domain?
  9. Algebra 2

    Can someone explain how to figure out these types of problems?
  10. Algebra 2

    Can someone see if I got these correct? 1. Solve log5 x = 3. x = 125 2. log3 (x - 4) > 2. x > 13 3. Evaluate log7 49. log7 49 = 2 4. Solve log3 x = 4. x = 81 5. The graph of a logarithmic function y = 3^x is a reflection of x

More Similar Questions