if P(x)=1+6x-5x^2 represents the profit in selling x thousand Boombotix speakers, how many speakers should be sold to maximize profit?

600

Step-by-step explanation:

x max =

a = -5

b = 6

-6/2(-5) = 6/10 = 3/5 = .6

.6 thousand = 600

600 speakers should be sold.

Alternatively, you can check the vertex of the parabola formed.

435.24, 294.44 and 573.73.

Step-by-step explanation:

Helping dmitri sort his accounts from lowest to highest absolute value of account value will be for us to choose the smallest number first till the highest. Thus will be:

= -435.24, 294.44 and 573.73.