Wei has $150.00 to make a garland using 60-cent balloons. he wants to purchase 100 blue balloons and some
number of white balloons. he learns that the white balloons are on sale for half price. he writes and solves an
equation to find the number of white balloons he can purchase
which models can be used to solve the problem?

2 is the final ! : )

the answer is 2/54

step-by-step explanation:

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