Answer:
Step-by-step explanation:
Given : Equation - 
To Find : All real solutions of the equation
Step1 - Write the equation :

Step 2 : To find the x-intercept we plot the graph,
when we plot the graph the points where y=0 are the x-intercept
Step 3: Points where y=0 are 5,2,1 (shown in the attached graph)
Therefore, (x-5)(x-2)(x-1) are the solutions of the equation.
Hence, 
Total number of team in starting = 128 teams.
In each round half of the teams are eliminated.
Therefore, number of teams remain after first round = 128/2 = 64.
The number of teams remain after second round = 64/2 = 32.
The number of teams remain after third round = 32/2 = 16.
The number of teams remain after fourth round = 16/2 = 8.
The number of teams remain after fifth round = 8/2 = 4.
<h3>Therefore, after 5 rounds there remain only 4 teams.</h3>
Answer:
(m-5) (n-4)
Step-by-step explanation:
mn - 4m - 5n + 20
We will factor by grouping
mn -5n -4m +20
Factor an n out of the first 2 terms and a -4 out of the last 2 terms
n (m-5) -4(m-5)
Now factor out a m-5
(m-5) (n-4)
Yes
Y varies directly with x, it is a direct relationship between the two.
The only point in the solution space is that of selection ...
C (1, 3)