Answer: angle 1=129 degrees
Step-by-step explanation:
180 - 99 - 30 = 51
all the angles of a triangle should add up to be 180 degrees
51+99+30=180
angle 1 is supplementary to the angle that is 51 degrees so it would be 129 degrees. 180-51=129
I believe the answer is 2 :) .
Answer:
20
Step-by-step explanation:
n(A) only =15-4=11
n(B) only=9-4=5
n(A n B)=4
n(A U B)=11+5+4=20
Answer:
1/4, 0.4, 0.4/w line, and 4% I think
Step-by-step explanation:
Answer:
Step-by-step explanation:
sorry this one isnt an easy one. but your answr should be 1.8