445 Answered Questions for the topic Logarithms

Logarithms

05/22/16

logarithms

a certain element has a life of 4.5 billion years. a. you find a rock containing a mixture of the element and lead. You determine that 30% of the original element remains the other 70% decade into... more
Logarithms Math Help

05/20/16

Not sure how to do this

If log3 x=2, then what's x equal to?

05/15/16

Which of the following logarithmic equations has no solution?

A) log4(x + 2) = log4(6 - x)B) log4(x + 2) = 1C) log4(x+2) = log4(2x+6)D) log4(-x) = 1   *** The 4's should be bases

05/13/16

Simplifying Logarithms

Simplify: w^logw(yz)
Logarithms Algebra 2

05/12/16

If (x1,y1) and (x2,y2) are the solutions of system of eqn

If (x1,y1) and (x2,y2) are the solutions of system of eqn  log225(x) + log64(y) = 4, log(x)225 - log(y)64 = 1, find the value of log30(x1y1x2y2).  
Logarithms

05/09/16

Help me please

Write in Logarithmic form using base 2:  32^3/5=8

05/02/16

Use the change-of-base theorem to find each logarithm: log3.14 81

Use the change-of-base theorem to find each logarithm: log3.1481

A sample of 400 g of radioactive lead-210 decays to polonium-210 according to the function A(t)=400e^-0.032t....

A sample of 400 g of radioactive lead-210 decays to polonium-210 according to the function A(t)=400e-0.032t,where t is time in years. Find the amount of radioactive lead remaining after (a) 4... more
Logarithms Math Algebra Math Help

05/02/16

Use the change of base formula to write the following in terms of natural logarithms.

Log8(3)   A. ln(8/3) B. ln(3/8) C. ln(3)-3ln(2) D. 1/3ln(3)/ln(2) E. 3ln(2)/ln(3) F. None of the above
Logarithms Math Algebra Math Help

05/02/16

Rewrite the following expression by using the laws of logarithms.

ln(exR6)   A. xe+6ln(R) B. e+R6 C. x+6ln(R) D. x+ln(6R) E. 1+6ln(R) F. None of the above.
Logarithms Math Algebra Math Help

05/02/16

Rewrite the following expression by using the laws of logarithms.

Log9(*squareroot*Q)   A. 2Log9(Q) B. Log9(Q) C. 1/2Log2(Q) D. 1/2+Log9(Q) E. 1/2Log9(Q) F. None of the above.
Logarithms Math Algebra Math Help

05/02/16

Rewrite the following expression by using the laws of logarithms.

Log8(x3)   A. Log8(3x) B. 3Log8(x) C. 3+Log8(x) D. Log3(8x) E. Log(x3) F. None of the above.
Logarithms Math Algebra Math Help

05/02/16

Rewrite the following expression by using the laws of logarithms.

Log3(13RQ/V)   A. Log3(13)+Log3(R)+Log3(Q)+Log3(V) B. Log3(13)+Log3(R)-Log3(Q)-Log3(V) C. Log3(13)+Log3(R)+Log3(Q) D. Log3(13)-Log3(R)-Log3(Q)+Log3(V) E. Log3(13)+Log3(R)+Log3(Q)-Log3(V F.... more
Logarithms

04/28/16

The functions f(x) = log9(x) and g(x) = 9x are _______ functions.

a. linearb. quadraticc. logarithmicd. inversee. exponentia
Logarithms Math Algebra Math Help

04/25/16

Write the following logarithm as a sum of logarithms with no products, powers or quotients.

ln ( x4(x-4)2 )    -------------- (square root x2+1)

Solve each of the following equations.

Solve for x. (Note: Further simplification may occur in step (b).) Write the answer in terms of natural logarithms, unless no logarithms are involved. Rewrite the answers to each individual... more
Logarithms Math Algebra Math Help

04/20/16

True or False (Logarithm)

Determine if True or False.    *small # under log   1) log*5(xy)=(log*5x)(log*5y)   2) log*5 4= log4/log5                 
Logarithms Algebra Math Help

04/20/16

True or False (Logarithm)

1) log(x-y)=logx-logy    2) log(x/y)=logx-logy    3) ln0=1  
Logarithms Algebra

04/19/16

9ln9x=36 exact answer, approximate answer 4dp

show work
Logarithms Algebra

04/19/16

log base m (1/m)

(hint: m is positive number)
Logarithms Algebra

04/19/16

log square root of 100 + 3log cube root of 100

Evaluate the expression: A) 1/3  B) 3/10   C)5  D)3  
Logarithms

04/17/16

Simply/condense the following

1/2log6(9)-(3log6(X)+2log6(Y)) + 1/3log6(8) 6 is the log base

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