BrownieWuver BrownieWuver

02-02-2015
Mathematics

contestada

How many solutions are there to the following system of equations?

4x – 14y = 6
–2x + 7y = –3

A.
1

B.
2

C.
infinitely many

D.
0

Respuesta :

02-02-2015

[tex]4x-14y=6 \\ -2x+7y=-3 \ \ \ |\times 2 \\ \\ 4x-14y=6 \\ \underline{-4x+14y=-6} \\ 4x-4x-14y+14y=6-6 \\ 0=0 \\ always \ true \\ \\ \boxed{\hbox{infinitely many solutions}} \Leftarrow \hbox{answer C}[/tex]

Answer Link

Otras preguntas

which part of a map tells you the subject of a map

why is stainless steel used instead of pure iron for the ball of the pen

How are electromagnetic waves different than all other waves?

Help on starting my essay on ISLAM and Judaism how should i start my introduction ?

what case gave the u.s. supreme court the power of judicial review

In the supply-and-demand schedule shown above, at the prices of _____ and ______, there is excess demand because quantity demanded is greater than quantity supp

1.solve the system of equations y=2x^2-3 y=3x-1 a. no solution b. (-1/2,5),(2,-5/2) c. (-1/2,-5/2),(2,5) d. (1/2,5/2),(2,5) 2.how many real numbers soluti

Please read the following quotation from “The Cabuliwallah” and then answer the question.“Whenever she hears a noise in the street or sees people coming toward

I'm going to be doing the debate (in class) on whether the colonies should join the confederation or not. I'm on Canada West and I'm FOR the confederation... th

What prompted astronomers to look for Neptune