Answer: 12.20 feet.
Step-by-step explanation:
Observe in the figure attached that a right triangle is formed.
Then, you need to remember the identity:

In this case you can identify that:


Then, to find the length of the wooden board (x), you need to substitute values and solve for x.
Therefore, you get:

The length of the wooden board is: 12.20 feet.
Line above the repeating number
Answer:
10y-30
Step-by-step explanation:
10*1y=10y
-3*10=-30
10y-30
Answer:
ITS NOT A LINEAR EQUATION SO IT DOES NOT HAVE A SLOPE
Step-by-step explanation:
Answer:
Step-by-step explanation:
(a). 270° clockwise or 90° counterclockwise:
(x, y) --------> ( - y, x )
(b). 270° counterclockwise or 90° clockwise:
(x, y) ---------> ( y, - x )