Answer:
32
Step-by-step explanation:
19-(-13)
=19+13<em> (after removing the brackets, the minus sign becomes positive)</em>
=32
Answer:
n = s/180 +2
Step-by-step explanation:
180(n-2)=s
Distribute
180n - 360 =s
Add 360 to each side
180n -360+360 = s+360
180n = s+360
Divide each side by 180
180n/180 = s/180 + 360/180
n = s/180 +2
Answer:
x = 3 and y = 3
Step-by-step explanation:
4 times 3 is 12. 2 times 3 is 6
12 minus 6 is 6
sum of the triangle angles are 180°
A+80+39=180°
A=180°-119°
A=61°