Answer:
D, I don't know, and 1 + 3
Step-by-step explanation:
D I'm not 100% sure on, 2 I have no clue, and the third is just swapping the signs because you are flipping over the axis. I hope I could help you!
Answer:
24
Step-by-step explanation:
:) im in 8th do i already know this stuff
Answer:
Subtract 4 on both sides, then divide by 2 to find y
Step-by-step explanation:
The square root rounded would be 4.9 if you want a whole number try 5. Since twenty four does not have a square root it is hard to tell.
Answer:
Disclaimer: There is error in the Q. In (II) there should have been 2x - 3y = 12
5x + 3y = 9 -----(I)
2x - 3y = 12 ----- (II)
Add (I) and (II)
7x = 21
x = 3
Putting the value of x = 3 in (I) we get
5(3)+3y=9⇒15+3y=9⇒3y=9-15=-6⇒y=-2
Thus, (x, y) = (3, -6).
Step-by-step explanation: