Mathematics, 22.05.2020 16:57 jarvinmcgillp3dhni
To solve the system of linear equations 8 x + 5 y = 18 and 6 x + y = negative 2. By using the linear combination method, Amos decided that he should first multiply the second equation by β5 and then add the two equations together to eliminate the y-terms. His calculations are as shown. 8 x + 5 y = 18. + 6 x minus 5 y = 10. 14 x = 28. StartFraction 14 x Over 14 EndFraction = StartFraction 28 Over 14 EndFraction. X = 2. 6 x + y = negative 2. 6 (2) + y = negative 2. 12 + y = negative 2. 12 + y minus 12 = negative 2 minus 12. Y = negative 14. Amos's solution is (2, β14). What did he do wrong?
Answers: 3
Mathematics, 21.06.2019 22:00
What is the length of the segment, endpoints of which are intersections of parabolas y=x^2β 11/4 xβ 7/4 and y=β 7 /8 x^2+x+ 31/8 ?
Answers: 1
Mathematics, 22.06.2019 01:00
Use mathematical induction to prove the statement is true for all positive integers n, or show why it is false. 1^2 + 4^2 + 7^2 + + (3n - 2)^2 = [n(6n^2-3n-1)/2]
Answers: 1
Mathematics, 22.06.2019 01:30
Find the vertex for the parabola given by the function Ζ(x) = β3x2 β 6x.
Answers: 2
To solve the system of linear equations 8 x + 5 y = 18 and 6 x + y = negative 2. By using the linear...
Social Studies, 20.07.2019 04:00
Computers and Technology, 20.07.2019 04:00
Computers and Technology, 20.07.2019 04:00
Spanish, 20.07.2019 04:00
Computers and Technology, 20.07.2019 04:00
Computers and Technology, 20.07.2019 04:00
Mathematics, 20.07.2019 04:00
Social Studies, 20.07.2019 04:00
Health, 20.07.2019 04:00
Mathematics, 20.07.2019 04:00
Biology, 20.07.2019 04:00