1. choose the order pair that is a solution for this equation. x - 3y = -7 a. (2,4) b. (2,3) c. (2,-1) 2. could this order pair be a solution to this equation? 3x - 2y = 10 a. yes b. no 3. in which quadrant is point (4,6) located? (remember to use roman numerals to write the quadrant numbers.) 4. find the slope of the line that contains these points. (3,2) (5,12) 5. is this ordered pair a solution to the inequality? (5,1) 2.2x - 4.33y > 0 a. yes b. no 6. in which quadrant would these coordinates be located? (3,-6) a. quadrant ll b. quadrant lll c. quadrant lv d. quadrant l 7. which ordered pair could be a solution to this inequality? 5x + 1 < 3y a. (-2,3) b. (2,-3) c. (-4,-7)

{x = -1/2 ,   y = -1

step-by-step explanation:

solve the following system:

{2 x + y = -2

{10 x - 3 y = -2

in the first equation, look to solve for y:

{2 x + y = -2

{10 x - 3 y = -2

subtract 2 x from both sides:

{y = -2 x - 2

{10 x - 3 y = -2

substitute y = -2 x - 2 into the second equation:

{y = -2 x - 2

{10 x - 3 (-2 x - 2) = -2

10 x - 3 (-2 x - 2) = (6 x + 6) + 10 x = 16 x + 6:

{y = -2 x - 2

{16 x + 6 = -2

in the second equation, look to solve for x:

{y = -2 x - 2

{16 x + 6 = -2

subtract 6 from both sides:

{y = -2 x - 2

{16 x = -8

divide both sides by 16:

{y = -2 x - 2

{x = -1/2

substitute x = -1/2 into the first equation:

{y = -1

{x = -1/2

collect results in alphabetical order:

answer:   {x = -1/2 ,   y = -1

part d

step-by-step explanation:

theresa talked her parents into getting sd cards for her phone and her brother’s phone. inserting an sd card into a phone gives it more storage. they both get 8-gigabyte sd cards. how many bits of storage come with each sd card? type your answer in both scientific and standard notation.