Asked by Jackie
1. Find the amount of time required for an investment to double at a rate of 12.3% if the interest is compounded continuously.
MY ANSWER: 5.635 yrs
2. Solve e^(0.2x) < 21.2 by using natural logarithms.
MY ANSWER: X<15.270
3. Convert log(base 5) 47 to a natural logarithm and evaluate.
My answer: 2.392
4. The pH of a water supply is 7.3. What is the concentration of hydrogen ions in the tested water?
I’m not sure but is it 5.012 x 10^-8
Check my answers?
MY ANSWER: 5.635 yrs
2. Solve e^(0.2x) < 21.2 by using natural logarithms.
MY ANSWER: X<15.270
3. Convert log(base 5) 47 to a natural logarithm and evaluate.
My answer: 2.392
4. The pH of a water supply is 7.3. What is the concentration of hydrogen ions in the tested water?
I’m not sure but is it 5.012 x 10^-8
Check my answers?
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