Answer:
area= 144ft^2
Step-by-step explanation:
width = x
length = 4x
perimeter = 2(4x+x)
60/2=5x
30=5x
x=30/5
x=6
width 6 feet
length 4(6)
= 24
area = length * width
=6*24
=144ft^2
Answer:
Building height is measured from finished grade located within 2 feet of the foundation wall to the highest point on the building or structure. ... The building height is the vertical distance between finished grade and the highest point on the building, provided that the measured elevation does not include fill or berms.
The given expression is

We have to find the discriminant first . And for that, first we need to move whole terms of the left side to right side, that is


The formula of discriminant is

Substituting the values of a,b and c, we will get

And since the discriminant is greater than 0, or it is positive so we have two real roots.
Therefore the correct option is B .