Step-by-step explanation:
1.) 8^-4
1/8^4 = 1/4096
2.) 2^-9
1/2^9 = 1/512
3.) (-7)^-3 =1/(-7)^-3
= 1/-343
Answer:
the answer is d
Step-by-step explanation:
Step-by-step explanation:
-7x + 2y = 18
6x + 6y = 0
21x - 6y = - 54
6x + 6y = 0
27x = -54
x = -2
6(-2) + 6y = 0
-12 + 6y = 0
6y = 12
y = 2
(-2,2)
