Step 
<u>Find the length of the side MN</u>
we know that
Applying the Pythagorean Theorem

Solve for MN

in this problem

Substitute in the formula above



Step 
<u>Find the value of cos (M)</u>
we know that
in the right triangle MNL


Substitute



therefore
The answer is
The value of cos(M) is equal to 
There were 80 questions on the test.
Answer:
multiply by 32
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
y=x+2. let it eq 1
put y= - 2 and x=-4 in eq 1
-2 = -4+2
-2= -2
now put x= -3 and y= -1 in eq 1
-1 = -3+2
-1 =-1
now put x= -2 and y=0 in eq 1
0 = -2+2
0=0
now put x= -1 and y=1 in eq 1
1 = -1+2
1=1