URGENT step by step answer or just which number fine
Which pair of equations could not be used to solve the following equations for x and y?
4.x +2y = 22
–2x+2y =-8
1)
4x+2y=22
2x-2y=8

2)
4x+2y=22
-4x+4y=-16

3)
12x+6y=66
6x-6y=24

4)
8x+4y=44
-8x+8y=-8
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Statement: if two distinct planes intersect, then their intersection is a line. which geometry term does the statement represent? defined term postulate theorem undefined term

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39

Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list