x≤99
the explanation is that
81+19=100
this being true, x can't be greater than 100
Graph is attached
I hope this Helps!
Your answers for (a) and (c) are correct.
(b) Salt flows into the tank at a rate of
If is the amount of salt (in kg) in the tank at time (in min), then the salt flows out of the tank at a rate of
The net rate of change in the amount of salt in the tank at any time is then governed by the linear differential equation
I'll solve this with the integrating factor method. The I.F. is
Distributing on both sides of the ODE gives
Integrate both sides.
Given that , we find
so that
Then the amount of salt in the tank after 1 hr = 60 min is
Answer:
1. 3/4
2. 1/2
3. 7/12
4. 2/3
5. 1/12
6. 1/2
7. 39/8
8. 59/10
Step-by-step explanation:
Answer:
1/26
Step-by-step explanation:
For two independent events, you multiply the chances of one event times the chances of the other. .
The chances of heads in the coin flip is 1/2.
There are four 10's out of 52 cards. So 1/13 for that event.
Multiply 1/2 times 1/13 to get 1/26