Mathematics, 15.01.2020 06:31 coolusername1314
Find solution to the system of linear equations. x1 - 3x2 = 5 , x1 + x2 = 2
Answers: 2
![x_2-(-3x_2)=2-5\ \ [\because (-)(-)=(+)]\\\\\Rightarrow\ x_2+3x_2=-3\\\\\Rightarrow\ 4x_2=-3\\\\\Rightarrow\ x_2=\dfrac{-3}{4}](/tpl/images/0455/7399/365ce.png)
in (2) , we get
[∵ (-)(-)=(+)]
Another question on Mathematics
Mathematics, 21.06.2019 15:10
An objects motion is described by the equation d= 4sin (pi t) what will the height of the object be at 1.75 seconds?
Answers: 1
Mathematics, 21.06.2019 19:30
If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b
Answers: 1
Mathematics, 21.06.2019 20:30
Aregular pan has a length that is 4/3 the width. the total area of the pan is 432in.2. what is the width of the cake pan?
Answers: 1
Mathematics, 21.06.2019 22:30
Ascientist places 24 cells in a petri dish. she knows the cells grow at an exponential rate, doubling in number every hour. how long will it take (in hours) for there to be 1100 cells in the dish? time to 1100 cells: 5.51832530 hours how long will it take to reach 110 cells? time to 110 cells : 2.1963972 hours what is the average rate of change in the number of cells between 9 hours and 11 hours? average rate of change: cells per hour what is the instantaneous rate of change after 7 hours? instantaneous rate of change: cells per hour note: you can earn partial credit on this problem.
Answers: 1
You know the right answer?
Find solution to the system of linear equations. x1 - 3x2 = 5 , x1 + x2 = 2...
Questions
Mathematics, 01.04.2021 20:10
Chemistry, 01.04.2021 20:10
Computers and Technology, 01.04.2021 20:10
Mathematics, 01.04.2021 20:10
Health, 01.04.2021 20:10
Social Studies, 01.04.2021 20:10
Mathematics, 01.04.2021 20:10
Mathematics, 01.04.2021 20:10
Biology, 01.04.2021 20:10
