Answer:
The slope of the line is 1 , because the slope of another line parrallel to it is 1 and we know the when two lines are parralel the slope are equal
Answer:
400,000
Step-by-step explanation:
Answer:
Step-by-step explanation:
Let r be the radius of the semicircle, then 2r is the width of the rectangle. Let y be the length of the rectangle. The perimeter of the window consists of two lengths, one width and length of semicircle, then
Express y:
The area of the window is
Substitute y into the area expression:
Find the derivative A':
Equate A' to 0:
When then and the function A is increasing, when then and the function A is decreasing. This means that at point the function A takes it maximal value (the area is maximal).