Answer:
140.32mL per hour
Step-by-step explanation:
Rate of leakage of nitrogen ballon = 75 mL/h
Rate of leakage of helium ballon = x
Molar mass of nitrogen= Mn = 14
Molar mass of helium = Mh = 4
Effusion formula
Rate of effusion of helium/ Rate of effusion of nitrogen= √(Molar mass of nitrogen/Molar mass of helium)
Rate of effusion of helium = 75mL/h * √(14/4)
= 140.32mL/h
She is not correct because 3/7 + 1/2 = 13/14.
4/9 is not greater than 1/2.
Answer: Her hourly rate is $11.64
Step-by-step explanation: The total amount that she earned in a week is $465.60 and she worked for 40 hours.
We have take the amount that she earned and divide it by the hours she worked.
$465.60/40
=$11.64
The answer is 25 add all the numbers together and divide by the number of numbers present hope this helped
Answer:

Step-by-step explanation:
Given

Required
Determine h(-6)
To do this, we make use of:

Because 
So, we have:



Simplify
