What is the term that describes the ratio of desired signal to undesired signal in the average power level of a transmission

SNR which stand for signal to noise ratio is a ratio that is calculated to compare the disired signal level and background noise level

Explanation:

SNR which stand for signal to noise ratio is a ratio that is calculated to compare the disired signal level and background noise level. It is expressed in db i.e. decibel. and ratio of 1:1 shows more signal level than noise.

generally signal with 20 db is considered as good SNR value while 18 db around SNR is good for data.

1= 26.17

2= 1.17

3=30.86

4=5.86

just took the assigment on edge

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.