Posted by **zachary** on Friday, March 22, 2013 at 6:24pm.

For # 1, im getting stuck on this problem i don't understand this

1.4 = e ^ (0.03k)

Now take the natural logarithm of both sides to solve for ,

ln 1.4 = ln e ^ (0.03k)

ln 1.4 = 0.03k * ln e

Recall that ln e = 1.

ln 1.4 = 0.03 k

Solve for k.

Then try part b.

For # 2,

y = 3 + e ^ (4 - x). Swap x and y and then solve for y.

x = 3 + e ^ (4 - y)

x - 3 = e ^ (4 - y)

Now take the natural logarithm of both sides and solve for y.

## Answer This Question

## Related Questions

- Calculus - For 0 < x < PI/2, if y = sin(x)^x, then dy/dx is.. I understand...
- urgent urgent algebra / precalculas - 1. Given a function,H(x)explain how to ...
- Math - urgent - When solving for x by completing the square as in the equation 3...
- Algebra - Can you explain to me how to solve this equation? 2/3x-9=1/3 1/3=.33 ...
- math - How would I use separation of variables to solve the initial value ...
- Math - How would you solve a problem like this with logarithims? I tried to ...
- urgent urgent algebra / precalculas - rewrite each in exponential expression as ...
- Algebra - 2x + 1/2 = x/2 + 1/3 Subtract the x/2 from both sides to get 2x + 1/2...
- algrebra 2 - it is called completing the square here is the equation 4x^2-4x+1=9...
- Math - I have a problem..... -4(2x-3)=-8x+5 I understand first you distribute ...

More Related Questions