100feet below is your answer I think
divide 3550 by 75 i think. (use google calculator)
No, you cannot use the Associative properties with either subtraction and division, because it will not end to the same result. 14-8 is not the same as 8-14, and 24/4 is not the same as 4/24, but for example 3+2 is the same as 2+3.
1. Rewrite the expression in terms of logarithms:

Then differentiate with the chain rule (I'll use prime notation to save space; that is, the derivative of <em>y</em> is denoted <em>y' </em>)




2. Chain rule:




Since
, we can cancel one factor of sine:

3. Chain rule:




4. If you're like me and don't remember the rule for differentiating logarithms of bases not equal to <em>e</em>, you can use the change-of-base formula first:

Then

So we have




and we can use the double angle identity and logarithm properties to condense this result:

5. Differentiate both sides:





6. Same as with (5):






7. Looks like

Compute the second derivative:


Set this equal to 0 and solve for <em>x</em> :





Step-by-step explanation:
slope=(y2-y1)/(x2-x1)
where (x1,y1)=(-8,-3)
(X2, y2)=(-12,-3)
slope=(-3+3)/(-12+8)=0