1^2 +2^2+••••+n^2=1/6n(n+1)(2n+1)
using maths induction ...
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 16:00
Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:30
The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median amount spent? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:00
If the discriminant if a quadratic equation is 4 which statement describes the roots?
Answers: 3
![question](/tpl/images/cats/mat.png)
You know the right answer?
Questions
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 19.09.2019 18:10
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 19.09.2019 18:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 19.09.2019 18:10
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 19.09.2019 18:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/biologiya.png)