SOLUTION: Use Logarithms to answer the following questions : 1) C = 3.8^2 / 0.943 2) B = cube root of (28.6/0.987) 3) A = (cube root of (39304))/ 136 4) A = square root of ( (16.843)^0

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Use Logarithms to answer the following questions : 1) C = 3.8^2 / 0.943 2) B = cube root of (28.6/0.987) 3) A = (cube root of (39304))/ 136 4) A = square root of ( (16.843)^0      Log On


   

Question 143336: Use Logarithms to answer the following questions :
1) C = 3.8^2 / 0.943
2) B = cube root of (28.6/0.987)
3) A = (cube root of (39304))/ 136
4) A = square root of ( (16.843)^0 * cube root of(18.8) )
Please help, i need help with these to prepare for an exam.
Thanks
Rebekah
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Let's do the first one. Then you can do then next 2
C+=+3.8%5E2+%2F+%280%2F943%29+
Using logs
LogC+=+Log%28%283.8%5E2%29%2F%280.943%29%29+
LogC+=+2%2ALog%283.8%29+-+Log%280.943%29+
LogC+=+1.1596+-++%28-0.0254%29+
LogC+=+1.185
10%5E%28LogC%29+=+10%5E%281.185%29+
C+=+15.31

2 and 3 are much the same
For the last problem, remember that anything raised to the 0 power is "1".
Given A+=+sqrt%28%2816.843%29%5E0+%2A+%2818.8%29%5E%281%2F3%29+%29
A+=+sqrt%281+%2A+%2818.8%29%5E%281%2F3%29+%29
A+=+sqrt%28%2818.8%29%5E%281%2F3%29+%29
A+=+%2818.8%29%5E%281%2F6%29+%29
Which looks like the same problems as above