A disc jockey at a school dance has equal numbers of rock, country, and pop songs that she randomly selects from. She designs a simulation to estimate

the probability that the next three songs she plays are all country songs.

Which simulation design could she use to estimate the probability?

not me

step-by-step explanation:

i wish i did i would like to get a desert ghost ball python

the answer is d

hope this

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

the second option

step-by-step explanation: