Answer:
see explanation
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is

Here [ a, b ] = [ 4, 7 ], thus
z = 
The answer is ..........2/3
Answer:
-26.0454545455
Step-by-step explanation:
Answer:
F (-8, -1)
Step-by-step explanation:
We can solve the system using substitution.
From the second equation
x-6y= -2
x= -2 + 6y
This value of x substitute into 1st equation
-4x+5y=27
-4(-2+6y)+5y=27
8-24y+5y =27
- 19y = 19
y= -1
x= -2 + 6y, y= - 1
x= -2 +6(-1)= -8
x= - 8
x= -8, y= -1
(-8, -1)