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:
2 hours = 45 pages
1 hour = 45 ÷ 2 = 22.5 pages
12 hours = 22.5 x 12 = 270 pages
Answer; 270 pages
The first one is $4 per bag, as given
For the he second one, you divide $15 by 4, you got $3,75 per bag
Therefore, the second one has the better unit price
Answer:
The expression above means x can be any number starting from 4 and above .
I think what you have to do here is first find out how many each student of each group gets. So, let's start off with how many oatmeal muffins each of the 8 students get. To do this, divide the 12 oatmeal muffins by 8, which gets you 1.5 oatmeal muffins per student.
Then, find out how many Apple muffins each of the 6 students get. To do this, divide the 15 Apple muffins by the 6 students, which leaves us with 2.5 Apple muffins per student.
Since Carmine is in both groups, she receives an equal share of both types of muffins. You add the 1.5 oatmeal muffin and 2.5 Apple muffins to see that Carmine gets 4 muffins in total. I hope this helped :)
