Answer:
-i(6/7)√2
Step-by-step explanation:

Answer:
The length of the lights is 2088 inches
Step-by-step explanation:
<em>The question is mixed up with another (See comment for correct question)</em>
Given


Required
The perimeter of the deck (this is what the question implies)
The perimeter (P) is:




a- is -28 and i’m working out the rest for you now
Answer:
Solution set = {-12, 12}
Step-by-step explanation:
Start by dividing both sides of the given equation by negative one, to get rid of the negative signs on both sides:

Now we consider the two possible cases:
1) The expression inside the absolute value symbol is a positive number, then :

and replacing it in the equation, this becomes:

which is our first answer.
2) The expression inside the absolute value symbol is a negative number, then :

and replacing it in the equation, this becomes:

which is our second possible answer.
Then the set of solutions is: {-12, 12}
Answer:
a. 96 square units
Step-by-step explanation:
The figure is a rectangle with width AB = (20-12) = 8 units and height BC = (20-8) = 12 units.
The area of the rectangle is (8 units)×(12 units) = 96 square units.