Answer:
34
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is

Here [ a, b ] = [ 1, 6 ]
f(b) = f(6) = 6³ - 9(6) = 216 - 54 = 162
f(a) = f(1) = 1³ - 9(1) = 1 - 9 = - 8, thus
average rate of change =
=
= 34
Answer:
Part 1) Greta's right, the triangle is incorrect.
Part 2) 
Part 3) The height of the tree is
, Trey’s house is not at risk
Step-by-step explanation:
Part 1) we know that
In the right triangle of the figure


Compare

therefore
The triangle is not correct
Because
The side adjacent to the 30 degree angle should be
and the side opposite the 30 degree angle should be 
Part 2)
Let
x--------> the distance from the airplane to the SCCA (hypotenuse of the right triangle)
we know that



Part 3)
Let
x--------> the height of the tree
we know that



therefore
Trey’s house is not at risk
Answer: 4
Step-by-step explanation: Length times width times height so you have to do 12 divided by 3 and you get 4
127/2.54 = 50 inches which equals 4.16 ft