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:

7 is 70 out of 1/10.
please give thanks if i am correct, i think this is the question you're asking.
Rise over run so it would be 5 over -2.5 ?? I could be wrong:((
Answer:
37.7
Step-by-step explanation:
The formula is C = 2 • 3.14 • r , you multiply the radius by pi/3.14, then you multiply that by product by 2.
Answer:
D
Step-by-step explanation:
First, simplify the equation.
-3x+1<7
-3x<6
x>-2 (the sign flips because you are dividing by negative)
> means x is greater than -2 so the line will go towards the right.
Because the sign is >, the dot is open.