3x-y=28
3x+y=14
solve this using elimination...
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 14:30
Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:00
Amanager recorded the number of bicycles sold by his company each quarter. his projected sales after t years is given by the expression below. which of the following statements best describes the expression? a. the initial sales of 575 bicycles increases at the rate of 4% over 4 quarters. b. the initial sales of 575 bicycles increases at the rate of 18% over 4 years. c. the initial sales of 575 bicycles increases at the rate of 4% over t quarters. d. the initial sales of 575 bicycles increases at the rate of 18% over t years.
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:00
Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 27.07.2021 01:00
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 27.07.2021 01:00
![question](/tpl/images/cats/istoriya.png)
History, 27.07.2021 01:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.07.2021 01:00
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 27.07.2021 01:00
![question](/tpl/images/cats/mat.png)
Mathematics, 27.07.2021 01:00
![question](/tpl/images/cats/en.png)
English, 27.07.2021 01:00
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.07.2021 01:00
![question](/tpl/images/cats/health.png)
Health, 27.07.2021 01:00
![question](/tpl/images/cats/mat.png)
Mathematics, 27.07.2021 01:00
![question](/tpl/images/cats/ekonomika.png)