The cost, C, to produce b baseball bats per day is modeled by the function. What number of bats should be produced to keep costs at a minimum

60

Step-by-step explanation:

Take the function's first derivative

C'(b) = 0.12b -7.2

7.2 = 0.12b

b = 7.2 / 0.12

b = 60

Second derivative test

C''(b) = 0.12 (+).

for all values of b, the graph will be concave downwards, therefore is value is confirmed to be a minimum

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option

i dont know men

step-by-step explanation: