The ordering and transportation cost c for the c mponents used in manufacturing a product is c= 100(200/x^2+ x/x+30), x≥1 where c is measured in thousands of dollars and x is the order size in hundreds. find the rate of change of c with respect to x when (a) x = 10, (b) x = 15, and (c) x = 20. what do these rates of change imply about increasing order size?

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64

an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110