![subject](/tpl/images/cats/mat.png)
Mathematics, 23.10.2019 19:00 asharrogers17
Assume that you heat your home with a heat pump whose heat exchanger is at tc=2∘c, and which maintains the baseboard radiators at th=47∘c. if it would cost $1000 to heat the house for one winter with ideal electric heaters (which have a coefficient of performance of 1), how much would it cost if the actual coefficient of performance of the heat pump were 75% of that allowed by thermodynamics?
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:00
The fraction 7/9 is equivalent to a percent that is greater than 100%. truefalse
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 01:20
1. why is a frequency distribution useful? it allows researchers to see the "shape" of the data. it tells researchers how often the mean occurs in a set of data. it can visually identify the mean. it ignores outliers. 2. the is defined by its mean and standard deviation alone. normal distribution frequency distribution median distribution marginal distribution 3. approximately % of the data in a given sample falls within three standard deviations of the mean if it is normally distributed. 95 68 34 99 4. a data set is said to be if the mean of the data is greater than the median of the data. normally distributed frequency distributed right-skewed left-skewed
Answers: 2
You know the right answer?
Assume that you heat your home with a heat pump whose heat exchanger is at tc=2∘c, and which maintai...
Questions
![question](/tpl/images/cats/himiya.png)
Chemistry, 16.01.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.01.2021 14:00
![question](/tpl/images/cats/istoriya.png)
History, 16.01.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.01.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.01.2021 14:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.01.2021 14:00
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 16.01.2021 14:00
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 16.01.2021 14:00
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.01.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.01.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.01.2021 14:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.01.2021 14:00
![question](/tpl/images/cats/ekonomika.png)
Business, 16.01.2021 14:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 16.01.2021 14:00