Answer:
The minimum cost per unit is obtained for an order of 8 units.
Step-by-step explanation:
Since the total cost is modeled by;
C(x)=5x²+320
Then;
1 unit costs; C(x)=5(1)²+320 = 325
cost per unit 325/1 = 325
8 units costs; C(x)=5(8)²+320 = 640
cost per unit = 640/8 = 80
80 units costs; C(x)=5(80)²+320 = 32320
Cost per unit = 32320/80 = 404
The minimum cost per unit is obtained for an order of 8 units.
I think it's a b not sure about the rest though
Answer:
B) 93
Step-by-step explanation:
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The scale factor as I understand it will just be 1 to 30, inches to miles.
however, in this case it seems to be suggesting a conversion to the same unit, say hmmm let's convert the miles to inches.