Archive for July 8th, 2007

log ? I must have been out for this whole unit?

Sunday, July 8th, 2007
Maggie L asked:


1. find the value of x log x289/169=2

2. evaluate the expression log2 1 (in the text the 2 next to the log is below the word a little and then the 1 is normal next to it, how do i write that or type that should I say)

3. evaluate the expression log6 6^2

4. assume that x,y,and z are possitive #’s. use the properties of logarithms to write the expression log (3sqrtx^2y4/z^3 in terms of logarithms of x,y and z.
a)2/3logx+2/3logy+logz b)2/3logx+4/3logy-logz

5. write the equation (1/3)^-5=243 in logarithmic form

6. find the value of x log2 32=x

7. fill in the blank to make it a true satement .To solve 3^x=30 we can take the logarithm of each side of the equation to get log (3^x)=log (30). the power rule for logarithms would then provide a way of moving the variable x from its position as an ____________ to the positive coefficient.

8. x is a possitive #. use the logarithm property to present the expression log(x+2)-logx as the logarithrm singl

Virginia

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