Answer:
I don't know if this helps, just a picture not a link
Answer:
<u>Radius: 12 units </u>
- Area: πr² = 3.14*12² = 452.16 square units
<u>Diameter: 16.8 units</u>
- Area: πd²/4 = 3.14*16.8²/4 = 221.5584 square units
<u>Radius: 3.4 units</u>
- Area: πr² = 3.14*3.4² = 452.16 square units
<u>Diameter: 10 units</u>
- Area: πd²/4 = 3.14*10²/4 = 78.5 square units
The room is 15yd × 10yd
so 15×10=150
the room is 150 square ft
First divide the 2nd equation by -3
3x+3y=10
same as other
they are the same line
so the solution is where they intersect
they are the same line
the intersection points are the points on the line
the solution is 3x+3y=10, that's all the points that satisfy the system
Not really because the division isn't an exact divison (1129,5).
Hope it helped,
BioTeacher101