Home-Deco uses three operations to assemble three types of home decorating accessories – wall clocks, chandeliers, & vases. The daily available times for the three operations are 550, 225, & 350 minutes respectively. The cost per unit of wall clocks, chandeliers, and vases are $5, $15, & $4 respectively. The assembly time per item are as follows:

Wall clock
Chandelier
Vase
Operation 1
5
3
4
Operation 2
3
1
0
Operation 3
2
7
2

The production department states the following conditions:

C4: the production of chandeliers must not exceed 120 units.
C5: The total production of wall clocks & vases should be at most 450 units.
Define the decision variables.
Define the objective function.
Write the constraint of “Operation 1”.
Write the constraint of “Operation 2”.
Write the constraint of “Operation 3”.
Write the constraint of “C4”.
Write the constraint of “C5”.
Write the variable condition.

ans.

heterothermic organisms include those organisms that can switch between homeothermic (having body temperature higher than environment) and poikilothermic (having variation in internal body temperature) strategies.

some migratory birds show heterothermy as they decrease their metabolic rate during cold nights to keep their body temperature low. drop in metabolic rate allows increase in production efficiency of birds that reduces the internal body temperature to make it equal to external cold temperature during cold nights.

thus, the correct answer is 'birds allow their temperature drop in order to increase their production efficiency.'

answer; how many employees will be needed for jobs in the coming period;

answer makes less frequent trips to the bank and firms make less frequent price changes;

the answer is d i just took the test (provides the number of allowances an employee has claimed.)