Answer:
I believe the answer is as follows:
Step-by-step explanation:
Interior angles: p, q, r
Exterior angles: t, s, v, u
Answer:
2/9
Step-by-step explanation:
Simplify 80°/360°
Answer:
60.5 milligrams per square centimeter First, determine how many half lives have expired by dividing the time by the half-life. So: 55/20 = 2.75 That means that only 2^(-2.75) = 0.148650889 = 14.8650889% of the original substance remains. So just divide the amount remaining by 0.148650889 to get the original amount. 9 / 0.148650889 = 60.5445419 So originally, there was 60.5 milligrams per square centimeter 55 years ago.
x=25,y=15 Not to sure abt this answer but I think I got it
