Answer:
B.6
Step-by-step explanation:
When we add and subtract, we do it from left to right
13+ (-12) - (-5)
13+-12
13-12 = 1
1 - -5
A negative negative is a positive
1 +5
6
 
        
                    
             
        
        
        
Answer:
61 degrees 
Step-by-step explanation:
==>Given ∆MNO,
MO = 18, 
MN = 6
m<O = 17°
==>Required:
Measure of <N
==>SOLUTION:
Use the sine formula for finding measure of angles which is given as: Sine A/a = Sine B/b = Sine C/c
Where, 
Sine A = 17°
a = 6
Sine B = N
b = 18
Thus, 
sin(17)/6 = sin(N)/18
Cross multiply
sin(17)*18 = sin(N)*6
0.2924*18 = 6*sin(N)
5.2632 = 6*sin(N)
Divide both sides by 6
5.2632/6 = sin(N)
0.8772 = sin(N)
sin(N) = 0.8772
N = sin^-1(0.8772)
N ≈ 61° (approximated)
 
        
             
        
        
        
Answer:
sdgggggggggggggggggggggggggggg
Step-by-step explanation: