Answer:
1. y
2 x
3 a
4 b
Step-by-step explanation:
Assuming it's just wanting to know what -4+or- sqrt(26):
adding: x= 1.1
subtracting: x=-9.1
Hope this helped!
Answer:
80%
Step-by-step explanation:
To find the percent that he has ridden, divide the number of miles he has ridden by the total length of the course
44/55
= 0.8
So, Ravi has ridden 80% of the course
Using proportions, it is found that the differential equation which describes the growth of the pigeon population is given by:

<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
In this problem, considering the initial population and the population one week later, the rate of growth is given by:
k = 9/6 = 1.5.
The standard differential equation for population growth is:

Hence:

More can be learned about proportions at brainly.com/question/24372153
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