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1. find the smallest integer that satisfies 2n>100643

2. I took logs of both sides to find n which I got to n>4272 (nearest integer).. is this correct?
3. I was going to correct the n>5! yes n = 4272 is correct.
4. (Original post by niaphonic)
I was going to correct the n>5! yes n = 4272 is correct.

Having bother with this though:

Find the exact solution to: In(2y+1) - In 4 = 1

so Loge(2y+1) - Loge(4) = 1

Loge(2y+1/4)=1

2y+1 / 4 = e

This is not correct.. any ideas?
5. (Original post by upthegunners)

Having bother with this though:

Find the exact solution to: In(2y+1) - In 4 = 1

so Loge(2y+1) - Loge(4) = 1

Loge(2y+1/4)=1

2y+1 / 4 = e

This is not correct.. any ideas?
If you mean (2y+1) / 4 = e; why do you think it's incorrect?
6. (Original post by ghostwalker)
If you mean (2y+1) / 4 = e; why do you think it's incorrect?
my book said it is: 0.5(4e-1)

how do I eliminate the y?
7. (Original post by upthegunners)
my book said it is: 0.5(4e-1)

how do I eliminate the y?
I get y = 0.5(4e-1) when I simplify your original answer, surely you don't have to eliminate y, as that it what you are finding?
8. (Original post by niaphonic)
I get y = 0.5(4e-1) when I simplify your original answer, surely you don't have to eliminate y, as that it what you are finding?
If that's the case then I know how to do it
9. (Original post by upthegunners)
If that's the case then I know how to do it
If you're asked to find y, you can say.

It's 0.5(4e-1)

Or y is 0.5(4e-1)

Or y=0.5(4e-1)

or just "0.5(4e-1)"

I would opt for the one in bold myself, as it's a clear mathematical statement.
10. (Original post by ghostwalker)
If you're asked to find y, you can say.

It's 0.5(4e-1)

Or y is 0.5(4e-1)

Or y=0.5(4e-1)

or just "0.5(4e-1)"

I would opt for the one in bold myself, as it's a clear mathematical statement.
yea thanks for that

silly mistake really

cheers buddy

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Updated: April 6, 2013
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