A local screen-printing company sells T-shirts at various prices, in dollars, depending upon how many T-shirts are bought at
the time. The piecewise function below represents their pricing structure, where n is the number of T-shirts purchased. The
school volleyball team purchased 20 shirts.
(139, 0 y - 11n, 20 9n, n > 50
How much did the volleyball team spend on shirts?

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

1) letter c.

2) 4 square root of 9

hope this

step-by-step explanation: