Details: 1. Which of the following statements are true for f(x) = -3x2 + 2x + 5?
(Chapter 10)

a. f(x) is a concave function
b. f(x) </= 10 is a convex set
c. f(x) >/= 2 is a convex set
d. a and b

2. In the basic EOQ model, if D = 55 per month, S = $10, and H = $7
per unit per month, what is the EOQ? (Chapter 16)

a. 10.5
b. 11.5
c. 12.5
d. 13.5

3. Given that annual demand equals 1000 units, Co = $300 per order
and Cc = $3 per unit, how many days are between orders in the
classical EOQ model?

a. 105
b. 110
c. 115
d. 120

4. If the demand rate and lead time are constant, then the
___________will have a _________ that will be made at specified
time intervals, which is the same as the ____________ under similar
conditions. (Chapter 16)

a. fixed-order / fixed-period model / fixed-quantity model
b. fixed-period model / fixed quantity model / fixed-order
quantity
c. fixed-quantity model / fixed-order quantity / fixed-period
model
d. fixed-period model / fixed-order quantity / fixed quantity
model

5. If the demand rate and lead time are constant, then the fixed-period
model will have a fixed-order quantity that will be made at specified
time intervals, which is the same as the fixed-quantity model under
_________conditions. (Chapter 16)

a. different
b. similar
c. constant
d. all of the above

Solution Preview

1a. It is a concave function (f'x exists and f"x is>0)
<br>2.EOQ = SQRT(2DS/H)
<br> = ...

If D = 9,000 per month, S = $45 per order, and H = $2 per unit per month, what is the economicorderquantity?
Round your answer to the nearest whole number; for example, 1234. Please show your work.

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Please help with the following problem regarding inventory management.
The Acme Grocery store started a Coupons Instantly program. It requires a debit card with a minimum of $300, so the customer can buy as many coupons as they want. As a promotional gimmick they are offering pens. The pens are given away to new coupon holde

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I need to know the EconomicOrderQuantity (EOQ).
I already have the equation I just not sure

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As the production manager, you need to minimize both ordering and inventory costs. You need to provide a recommendation of the optimal orderquantity of raw materials to your plant manager. Your objective is to determine the economicorderquantity (EOQ). If the annual demand for Ultamyacin at Wallingford is 400,000 units, the a

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Apply the EOQ model to the following quantity discount situation in which D=500 units per year, C0=$40, and the annual holding cost rate is 20%. What orderquantity do you recommend?
Discount Category Order Size Discount (%) Unit Cost
1 0 to 99 0

For each of the following independent cases, use the equation method to compute the economicorderquantity.
Case A Case B Case C
Annual requirement (in units) ................................................ 13,230 1,681