Answer: He will use 5 feet long to have the least amount of unused glass.
Step-by-step explanation:
Since we have given that
There are four pieces of glass i.e.
6 feet long, 5 feet long, 3 feet long, 7 feet long .
If the length of the glass he needs to cut is feet long,
Then,
So, Mark will use 5 feet long he should use cut to have the least amount of unused glass.
See the photo. The square is 2 triangles. Here is the area of each triangle:
Triangle Area=8*16/2=64
Area of square=64*2=128
Area of circle= 8*8*3.14=200.96
Shaded area=(circle-square)/4
=(200.96-128)/4=18.24
The sum can be rewritten as y=4x, where y=f(x).
Now, we can rewrite the equation a x=y/4
Therefore, inv(f(x))=x/4
Answer:
Step-by-step explanation:
Let the coordinates of point B are (x, y).
Since the rotation is clockwise the angle measure between OA and OB is -60° (IV quadrant).
- x = 15 cos (-60°) = 7.5
- y = 15 sin (-60°) = -12.99
<u>The distance between A and B is:</u>
- AB = = 15 units
<h3><u>Another solution</u></h3>
Since OA = OB = 15 units and AOB is 60° angle the triangle OAB is equilateral. Hence AB is same as OA and OB, so AB = 15 units.