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 physical property makes metal pots good for cooking?

Explain how cobalt-60 and cobalt -59 can be the same element but have different mass numbers

function form 5x-7y=14

What did Adam Smith say should determine the cost of goods?

Which one of the following is a measurement of energy used? A. 24 meters per second B. 60 milligrams C. 15 liters D. 6 joules

Can I please have 1 indirect object In percy jackson sea of monsters including the page number?

what r some facts about gymnosperms

Triangle ABC is similar to triangle QRS by the AA Similarity Postulate. Also, m∠A = 45° and m∠S = 75°. What is m∠B? _________ °

Can I please have 1 indirect object In percy jackson sea of monsters including the page number?

Which of the following features is found in an insect? indeterminate embryonic cells radial cleavage in embryonic cells coelom formed by a split in the mesoderm