Answer:
3052. 08
Step-by-step explanation:
volume = 4/3πr^3
= 4/3π*(9)^3= 3052.08 in^3
Answer:
should be y=-2/1x+2
Step-by-step explanation:
because the slope is going down 2 over 1 and the y-intercept is at positive 2
Answer: 2x and x2 are the same
Step-by-step explanation:
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.
Answer:
1: male + female 
30
2: 140 + 25x 
550
Step-by-step explanation:
