Answer:
No one knows
Step-by-step explanation:
Maybe another one
G(x)= x^2-6x-7
g(2)= 2^2 - 6×2 - 7 = -15
f(x)= x + 8
f(g(2))= -15 + 8 = -7 thus a is answer
Answer:
B
Step-by-step explanation:
Given
+ + = 0 , then
= 0 , so
yz + zx + xy = 0
Now
(x + y + z)² = x² + y² + z² + 2(xy + yz + zx) , that is
1² = x² + y² + z² + 2(0) , thus
x² + y² + z² = 1
y = -3x - 2
Since a < 0 we have a decreasing line, so it can be only the first or the last
And if we solve the equation for y = 0 we have
0 = -3x - 2
3x = -2
x = -2/3
So, the last one is the right
I am not sure ask your parents or your friends or your teacher or something but sorry I don’t kenos