Ok i will try to answer but i really dont have that much of a clue right now
Answer:
A) f'(t) is negative
B) degc/min
c ) At 20 minutes after the coffee was put on the counter its temperature is 56degc and will decrease by about 1.125 in the next 45 seconds
Step-by-step explanation:
A ) f'(t) is Negative because as the cup of coffee is placed on the counter there is loss of heat from the cup of coffee to the surrounding as t increases hence f'(t) is negative
B ) The units of f'(20) = degc/min
C) At ║f'(20)║ = 1.5 and f'(20) = 56
║f'(20)║ = 1.5 represents the rate of change of temp every 20 minutes = 1.5
therefore after 45 seconds = 3/4 mins. change in temp = (3/4 * 1.5) = 1.125
At 20 minutes after the coffee was put on the counter its temperature is 56degc and will decrease by about 1.125 in the next 45 seconds
Answer: The population is all US workers. The sample is adults who respond to the survey.
Step-by-step explanation: The population is the intended group that the question is about, all U.S. workers.
The sample is a small portion if that group, as it would be practically impossible to get data from everyone,
This sample is the adults who responded to this sutvey.
The sample might not be an accurate cross section of all workers, depending on how the website ensures that it includes appropriate segments of urban, suburban, and rural dwellers, from various regions of the country, and from different economic groups.
Answer:
b
Step-by-step explanation:
Answer:
1/4
Step-by-step explanation: