R2-4r-77 = (r-11)(r+7)
r has to be greater than 11 in order for the formula to represent the area of a rug since a side length cannot be less than or equal to 0.
Answer:
200 divided by 20 is 10
Step-by-step explanation:
<span>length of the side = 1.2 / 4 = 0.3 m
area = 0.3</span>² = 0.09 m²
Area of a rectangle can be calculated by multiplying length times width.
15*9=135 ft^2
Distance formula (See attachment below)
100 + 144
square root 244
15.620
Round to the nearest tenth
15.6