It's false because that teacher used someone's content without getting the consent of the owner which can also be referred as a unethical work.
R₂ and R₃ can be replaced by:

The total R of the circuit is R₁+R₅+R₄ = 706 2/3
So the current in the circuit I=V/R is 100/(706 2/3) = 15/106 A
(I'm deliberately not trying to round the result)
The voltage drop over R₄ is V=I*R = 15/106 * 500 ≈ 70
So answer C would be my choice.
Answer:
/etc/yum.conf
Explanation:
The absolute pathname for YUM is /etc/yum.conf. The configuration file For yum and related utilities can be found there. The file has one compulsory section, and this section can be used to place Yum options with global effect, it could also have one or more sections, that can enable you to set repository-specific options.
Answer:
There could be an issue with your SIM card, or the problem could be on your carrier's end. Possible causes of the 'not registered on network' error include:
Your phone's firmware or operating system is out of date.
The SIM card is disconnected or damaged.
Your carrier is not selected in your phone's settings.
Your carrier is experiencing an outage.
Explanation:
Answer:
Option A) Demand for CDs has decreased, causing equilibrium price and quantity to decrease.
is the correct answer.
Explanation:
- File-sharing is a common practice nowadays. It helps us by providing access to different files (audio , video, images, documents) to others in a faster way.
- A wide range of files are shared daily by using different means of file-sharing including computer networks and peer-to-peer networking.
- Formerly, the data was shared using CDs but now this system has been replaced with the advent of internet.
- Usage of CDs is dropped drastically and hence their demand is decreased.
- So now the prices of CDs are not in equilibrium and their quantity is also decreased.
i hope it will help you!