Answer:
7) D
8) A
9) A
10) D
11) C
12) B
Step-by-step explanation:
Answer:b
10 to 20 is 10 and 80 to 60 is -20 so it’s -20/10 which is -2
Answer:
She should have substituted y = 17 - 2x in the first equation
Step-by-step explanation:
3x + 4y = 33
2x + y = 17
y = 17 - 2x
3x + 4(17 - 2x) = 33
3x + 68 - 8x = 33
5x = 35
x = 7
y = 17 - 2(7)
y = 3
x = 7, y = 3
Only one solution
F(x)=(x+4)2−13 i think this is the simplified of the perfect trinomial
