Differentiate using the exponential rule, which determines that ![\bf{\frac{d}{dx}[a^{x}] }](https://tex.z-dn.net/?f=%5Cbf%7B%5Cfrac%7Bd%7D%7Bdx%7D%5Ba%5E%7Bx%7D%5D%20%20%7D)
is 
when a=3.
Therefore, the correct option is "E". You just have to remove the parentheses.
Answer:
x = -45, y = -40
Step-by-step explanation:
Based on the first clue, we find out that
x + 5 = y
5x = 6y + 15
We can re-write the first equation to x = y - 5.
Therefore, the second equation can also be written as 5(y - 5) = 6y + 15
This can be simplified to 5y - 25 = 6y + 15
We can subtract 6y from each side, and add 25 to each side;
5y - 6y = 15 + 25
Therefore, -y = 40
Therefore y = -40.
Now let's plug this back into the original equation, to get : x + 5 = -40
x=-45
I think its a. but i could be wrong
The second one is the true statement
