elisestanton elisestanton

25-04-2020
Mathematics

contestada

how many solutions does this linear have?
y= 2x+4
x + 2y = 8

Respuesta :

25-04-2020

y = 2x + 4

in standard form is

2x - y = -4

Second equation is

x + 2y = 8

Those aren't parallel.

Answer: exactly one solution

Let's solve,

x +2(2x + 4) = 8

5x + 8 = 8

5x = 0

x = 0

y = 2x + 4 = 4

Solution is (0,4)

Answer Link

Otras preguntas

Write a sentence containing a participial phrase. CAPITALIZE the phrase. Then below the sentence, tell which word is modified by the phrase.

Show that each number is a rational number by expressing it as a ratio of two integers A. 27 B. .075 C. 4 2/3 D. -9 E. 0.43 F. -18

What is homeostasis? How do cells use both diffusion and osmosis to help maintain homeostasis?

Determine whether the variable is qualitative or quantitative. explain your reasoning. miles per gallon that a car gets for highway driving

what is the relationship between history and geography

explain to me this thing because I don't know and I have a test on Friday help me please please

Compounds which are characterized as covalent are generally made up of elements found in which part of the periodic table

find one terminating decimal and one repeating decimal between -1/2 and -1/3

Which of the following cities was the leading center of trade and banking before the Civil War? A. BOSTON B.Washington D.C C.Newyork D. Philadelphia

Which statement best summarizes the effect of the first-person point of view on Poe’s story "The Pit and the Pendulum"? The first-person pint of view allows Poe