Answer:
yes, yes, no
Step-by-step explanation:
28squared+34squared=2809 find the square root and it equals 53
4.5squared+6squared=56.25, square root equals 7.5
20squared+30 squared=1300, square root is 36.5, so its wrong
Answer: 18- 3t
1) x=3, y=-3
10x + 7y = 9 —— (1)
-4x -7y = 9 —— (2)
(1) + (2)
6x = 18
x = 18/6
x = 3
put x=3 in (1)
10(3) + 7y = 9
30 + 7y = 9
7y = 9 - 30
7y = -21
y = -21/7
y = -3
please give me brainlist if it is helpful for you
here is what i think
m=-7/3 I think thats the right answer