Answer:
73 mph during the second hour!
Step-by-step explanation:
Hour 1=54 mph
Hour 2=? mph
Hour 3=82 mph
Total=209 mph
this means that 209=82+54+?
Simplify it and you will get 73
73 mph
4 trays are needed because your number is 3.75 and you need another tray for the rest
The answer to this question is b
Yes, it is right... you correctly distributed the negative, and combined like terms... great job!
Answer: Matched-pairs t-test
Step-by-step explanation: