Answer the following question and its parts: A manufacturer wishes to make tee-shirts for the band Indigo Girls. They sell for 10 dollars each. She must deliver all the tee-shirts in 20 days time. The manufacturer will first set up some machines. Once all machines are set up she will turn them on. Each machine takes one day to set up. A machine produces 200 tee-shirts in one day. All the machines must be set before any of them are turned on.

(a) Express the amount of money she will receive for the shirts in terms of the number of machines m she decides to set up.
$

(b) Use calculus to find out how many machines she should set up to obtain the most money.
m=

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explanation:

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.'

mauve company permits employees to occasionally use the copying machine for personal purposes

answer; read and consider the content of the items;