You have a square with half circles along the sides.
The length of each side is 4ft, so the radius of the circles is 2ft
to calculate the perimeter you can calculate the circumference of 4 half circles = 2 complete circles
c=2r*

=
2*2

=12.56
perimeter=2c=25.12=8

the area is the area of 2 circles+the area of the square
circle area= r^2*

=2*2

=4

concrete area=circle area*2+square area
=4

*2+(4*4)
=8

+(4*4)
=8

+16ft
=41.12 ft^2
The two angles form a right triangle which is 90 degrees.
Add the two to equal 90:
3x-8 + 4x = 90
simplify:
7x-8 = 90
Add 8 to both sides:
7x = 98
Divide both sides by 7:
x = 14
A. find the average of both x's for the x value, and the average of both y's for the y value. (-1+7)=3 (3+(-1))=1
I thought I knew the answer but I don’t Srry I need points
Answer:
x = 5
Step-by-step explanation:
Step 1: Write equation
-(1 + 7x) - 6(-7 - x) = 36
Step 2: Solve for <em>x</em>
- Distribute: -1 - 7x + 42 + 6x = 36
- Combine like terms: -x + 41 = 36
- Subtract 41 on both sides: -x = -5
- Divide both sides: x = 5
Step 3: Check
<em>Plug in x to verify it's a solution.</em>
-(1 + 7(5)) - 6(-7 - 5) = 36
-(1 + 35) - 6(-12) = 36
-(36) + 72 = 36
-36 + 72 = 36
36 = 36