Answer:
125 degrees.
Step-by-step explanation:
m < CBD = m < A + m < C ( by the External Angle of a Triangle theorem).
= 58 + 67 = 125 degrees.
Answer:
The statement
is equivalent to
, 
Step-by-step explanation:
We need to prove that the following statement
is equivalent to
with the use of Theorem 2.1.1.
So

by De Morgan's law.
by the Double negative law
by the Distributive law
by the Negation law
by Universal bound law
Therefore 
Answer:
The rate of change for this function or slope is 2
Step-by-step explanation:
Answer:
58 at the point (9,8)
7 at the point (1, 1)
Step-by-step explanation:
The maximum points will be found in the vertices of the region.
Therefore the first step to solve the problem is to identify through the graph, the vertices of the figure.
The vertices found are:
(1, 10)
(1, 1)
(9, 5)
(9, 8)
We look for the values of x and y belonging to the region, which maximize the objective function
. Therefore we look for the vertices with the values of x and y higher.
(1, 10), (9, 5), (9, 8)
Now we substitute these points in the objective function and select the one that produces the highest value for f (x, y)

The point that maximizes the function is:
with 
Then the value that produces the minimum of f(x, y) is (1, 1)
