Answer:
( x+ 18) + x + ( x + 18 ) + x = 4x + 36
x + 9 + x + 9 + x + 9 + x + 9 = 4x + 36
Step-by-step explanation: The perimeter of a figure is found by adding the lengths of the sides.
Answer:
option b is better because it would be 6 pounds cheaper than option a
Answer:
7 km
Step-by-step explanation:
Substitute:
The equation for area of a semi-circle is 
A = 
76.97 = 
Multiply by 2 on both sides:
2(76.97) = (
)2
153.94 = 
Divide by pi on both sides:
153.94 = 
/pi /pi
49.03 ≈ 
Find the square root:

7 = r
Answer:
Step-by-step explanation:
A rectangular garden has vertices at
(x = 4, y = 3), (x = 6, y = 3), (x = 6, y = 9), and (x = 4, y = 9).
To plot each vertex of the garden find on the graph the x and y coordinate of the point and mark the point.