-7x+9y=-18
-2x-9y=18
-9x (y’s cancel)=0
X=0
Answer:
2 in.
Step-by-step explanation:
14/7=2
Answer:
Step-by-step explanation:
The skier would have to go skiing 15 days im pretty sure.
hope im right :)
Answer:12.5
Step-by-step explanation:there you go
F(x) = x² - 1
f(2a) = 35
f(2a) = (2a)² - 1 = 35
4a² - 1 = 35
4a² = 35 + 1
4a² = 36
a² = 36/4
a² = 9
a = √9
a = +3 or -3.