Answer:
3
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is

here [ a, b ] = [ 0, 2 ] and from the graph
f(b) = f(2) = 0
f(a) = f(0) = - 6, hence
average rate of change =
=
= 3
Answer:
c=80
Step-by-step explanation:
Answer:
It's letter C (x = -2) (y = 1)
Step-by-step explanation:
Let one piece of the rope be x
Let the other piece of rope be x + 5
These two pieces put together will make 20 feet.
So we say:
x + (x +5) = 20
What is x? We expand the equation.
x + x + 5 = 20
x + x = 20 - 5
2x = 15
x = 7.5
The shorter piece is therefore 7.5 feet.
The longer piece is 7.5 + 5 = 12.5 feet.
Ok The answer is : -7
Simply -7 to 7:
7-21+7
Simplify and the answer is -7
hope this helps.