Answer:
add 4 so -1/2a=8
mult both sides by 2 so
-1a=16
divide 16 and -1
a = -16
Step-by-step explanation:
Answer:
A line is at a degree of 180, so the line 170 is on can give you the degree of the smallest angle: 10. A traingel has a total degree of 180, so 125 + 10 = 135. Take 180 and subtract 135 to get x = 45º
Step-by-step explanation:
18r+15s add it then yu will get
Answer:
B
Step-by-step explanation:
all sides are the same
