Didi has become the fastest growing energy drink in the u. s. the average retail price is $10.00/case. the known std. dev. of price is $4.00/case. the owner of a local supermarket sells and average of 250 cases per month; with a known standard deviation of 50 cases. what is the probability of choosing a case of didi at random with a price greater than $11? a. 0.3867 b. 0.4013 c. 0.8867 d. 0.3101 e. 0.5987

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

just pick what you think i need more time let me know if this

step-by-step explanation:

v=1788.75

step-by-step explanation:

i belive that is the answer