Answer:
Rate of change of the area of the square is 42 units at t = 2.
Step-by-step explanation:
We note that the area of the square is given by: 
but we aim to find 
. But we can use the chain rule to pull out that dA/dt. Doing so gives us:
Now, 
(by the power rule and 
But since we have "x" and not "t", we want to find what x is when t = 2. Substituting t = 2 gives us x(2) = 3(2) + 1 = 7.
So, finally, we see that:
No, yes, no, yes
What part of comparing number values do you not understand? Most folks figure out enough about place value to be able to answer this by 3rd grade. If there's something about this question that really stumps you, please advise in the comments.
I believe that answer is B. (The second one)
Hope this helped !!
Noce
Step by step solution
Dd
D
D
Dd
D
F
Step-by-step explanation:
3×+5-7×+9
3×3=9+5=14
7×7=49+9=58
58-14=44
<h2>ans.44</h2>
