√x+6
The remains of a structure on an archeological site are laid out in the shape of a rectangle. The area of the rectangle is 12 square meters. The width is 3 meters and the length is as shown in this statement. What is the value of x?

a) 10
b) 4
c) 12
d) 16

Question

√x+6
The remains of a structure on an archeological site are laid out in the shape of a rectangle. The area of the rectangle is 12 square meters. The width is 3 meters and the length is as shown in this statement. What is the value of x?

a) 10
b) 4
c) 12
d) 16

anonymous · Answer

Did you mean root(x) + 6? Or did you mean root(x+6)?

mathmate · Answer

3*length = 12
therefore
length = 12/3=4 m

Solve 4=sqrt(x+6) 
to find x.