Answer:

Step-by-step explanation:
Use the inverse cosine function.



Answer:

Step-by-step explanation:
Formula for perimeter of a rectangle:

= width
= length
Since the length is twice the width,
.
So, plugging these values into the formula, as well as the given perimeter of 121 feet, we get,

And after some simplification, we are left with,

0.25-1.125-16/8=??
Answer is -2.875
72.50 is rounded and the answer to this question