Answer:
150°
Step-by-step explanation:
number of terms=12
sum of exterior angles=360
one exterior angle=360/12=30
interior angle=180-30=150°
 
        
             
        
        
        
Step-by-step explanation:
eqn of line : y = mx+ c
m = slope or gradient
c = y-intercept.
Lets take (1,6) = (x1,y1) and (2,3) = (x2,y2)

Substitute x = 1 and y = 6 into equation,

Therefore substituting m and c value, equation of line is 

 
        
             
        
        
        
Answer:

Step-by-step explanation:
Given
Represent point A as thus;

Required
Determine the new position of A, when rotated counterclockwise
The new position will be denoted as A'
When a point is rotated counterclockwise, we start by switching the positions of x and y as follows:

Then, y is negated to give A'

 
        
             
        
        
        
Answer:
The second option
Step-by-step explanation:
Here, we need to multiply each part of the matrix by -10. 
This will give us: [ -230 380 ]
                            [ -170    60 ]
So, the answer is the second option. 
 
        
             
        
        
        
Answer:
B) You conclude that the mean height of all Quarter Horses is close to 15.2 hands
Step-by-step explanation: