Answer: Please rewrite your question or send a pic.  It is not clear what you are asking.
Step-by-step explanation:
 
        
             
        
        
        
First problem:
cos (theta)=1
Using the inverse cosine function, you get theta = 0.
Now we find tan 0 = 0
cot(theta) = 1/tan(theta) = 1/0 
Division by zero is undefined, so the answer is d. undefined
Second problem:
cos (theta)=1
Use the inverse cosine function.
theta = 0°
Answer: c. 0°
 
        
             
        
        
        
Answer:
27.22
Step-by-step explanation:
I just done it. it wasnt that hard 
 
        
             
        
        
        
The equation is: 
y
=
5
4
x
−
13
Explanation:
The slope-intercept form of a straight line is 
y
=
m
x
+
c
In this case we have a point, 
(
x
,
y
)
 and the slope, 
m
 so all we need is a value for 
c
 .
Substitute into 
y
=
m
x
+
c
−
3
=
5
4
(
8
)
+
c
−
3
=
10
+
c
c
=
−
13
        
                    
             
        
        
        
8 feet times 6 feet is 48 feet, B x H = A for rectangles...