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

What did Spanish missions promote to American Indians?

Identify the individual who was responsible for creating better and more efficient means of long-distance communication.

In Haiti, the dictators are gone, democracy has a new day, the flow of desperate refugees to our shores has subsided. -- President Clinton, 1996 State of the Un

The Calvin cycle is another name for the

The Calvin cycle is another name for the

Which of the following estates paid the most in taxes to the French government? Select one: a. Nobility b. Clergy c. Bourgeoisie d. All of the groups paid an eq

Settlers who grew just enough crops to support themselves likely lived in which region ? A.the south B.the tidewater region C.the piedmont region D.the coast of

Which law did the Mayflower Compact directly impact? Select the best answer from the choices provided A.Fundamental Orders of Connecticut B.Exeter Compact C.Con

Ben buys a car for $50,000. The value of the car decreases at a rate of 4% per year. How much will the car be worth in 3 years?

What foreign-policy approach did Ronald Reagan promise to take if he was elected in 1980? He promised to sign the INF Treaty. He promised to build a strong mili