Answer:
A) 
Step-by-step explanation:
The polynomial factored is equal to the area of the algebra tiles. This means the quadratic is

After writing out each tile as a term, combine like terms to simplify. This ia the quadratic.
Answer:
3.1415967382
Step-by-step explanation:
Answer:
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form
or 
In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin
we have the point (-30,18)
so
x=-30, y=18
Find the value of k
substitute
Simplify
Divide by 6 both numerator and denominator
3x4x1/2= 6inches Multiply the base by the height and after multiply by one half