<h2>
Answer:</h2>
The area of the remaining board in square feet is:
108 square feet.
<h2>
Step-by-step explanation:</h2>
The remaining area of board=
Area of the whole board-Area of square which is removed.
i.e.
Area of remaining board= Area of square of side length 12 feet-Area of square with side length 6 feet.
We know that the area of square with side length s units is given by: s² square units
Hence, we get:
Area of remaining board= (12)²-(6)²
i.e.
Area of remaining board= 144-36
i.e.
Area of remaining board= 108 square feet.
Answer:
<---- Why is -90x greater than 0?
because 90x > 0.
Step-by-step explanation:
hope this helped.
Answer:
x = -9
Step-by-step explanation:
We are solving for x
Subtract 2 from both sides and you get:
4x - 9 = 5x
Then subtract 4x from both sides:
-9 = x
Answer:

Step-by-step explanation:


<-- U-substitution


<-- Replace u with tanx






Therefore, 
6x+3=45
6x+3-3=45-3
6x= 42
Divide by 6 for 6x and 42
6x/6= 42/6
x= 7
Check answer by using substitution method
6x+3= 45
6(7)+3= 45
42+3= 45
45= 45
The answer is x= 7