Which statement about equations and expressions is true? An example of an equation is 4.5 + x = 13.2 because it shows that two expressions are equal.
An example of an expression is 4.5 + x = 13.2 because it shows that two equations are equal.
An example of an equation is 4.5 + x = 13.2 because it is a mathematical phrase represented by numbers, a variable, and operations.
An example of an expression is 4.5 + x = 13.2 because it is a mathematical phrase represented by numbers, a variable, and operations.

since it is addition with algebra than do 13.2 minus 4.5 and than that should be your answer.

Step-by-step explanation:

answer

false

explanation

these practices describe the manner the land use outcome is attained. land management methods implemented by corporations are a mandatory because they are a driver for better land use results economically, socially and environmentally. corporations are required to understand the connection between land use , and land management practices to support sustainable land use policies

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct