Answer:
V= 1570.8 ft³
Step-by-step explanation:
Answer:
You are correct. The answer is 
Step-by-step explanation:
First, we need to plug in our x value to the derviative's equation to find the slope of the line tangent to the graph, f

Now that we have found the slope and have a given point: (-1,6) we can use the point slope formula to find the equation of the line tangent to the graph f.

Width of 76 inches and length of 3
or width of 77 and length of 2
or width of 78 and length of 1
they all have a perminiter of 158 and all widths exceed 75
The answerr to the question is 89