Answer:
<em>(4, 1) </em>
Step-by-step explanation:
Method elimination would be good for this system
2x - y = 7 ........ <em>(1)</em>
x + y = 5 ......... <em>(2)</em>
<em>(1)</em> + <em>(2)</em>
3x = 12 ⇒ x = 4
4 + y = 5 ⇒ y = 1
<em>(4, 1)</em>
Question (a):
For this case we have the following function:
We must find the rate of change in the number of Internet users.
For this, we use the following equation:
- <em>For </em><em> we have:
</em>
- <em>For</em> <em>we have:
</em>
Substituting values we have:
Answer:
he rate of change in the number of Internet users in Mexico between 2004 and 2008 is:
Question (b):
- <em>For the year 2004 we have:
</em>
- <em>For the year 2008 we have:
</em>
Therefore, the percentage change is:
Substituting values:
Answer:
the percentage change in the number of Internet users in Mexico between 2004 and 2008 is:
Question (c):
For this case we have that the total population in Mexico for 2008, is given by:
109,955,400
The number of internet users for 2008 is:
15,030,000
Therefore, the percentage of the population that uses the internet in Mexico for 2008 is given by:
Substituting values we have:
Answer:
The Mexican population used the Internet in 2008 is:
Answer: y-1= 1/2(x-2)
Or
Y-3=1/2(x-6)
Step-by-step explanation:
Answer:
6 units
Step-by-step explanation:
The segment addition postulate states that if we are given two points on a line segment, E and G, a third point F lies on the line segment EG if and only if the distances between the points meet the requirements of the equation
EF + FG = EG (*)
In your case,
EF = 2x-2 units,
FG = 5x+1 units,
EG = 5x+7 units.
Substitute it into the equality (*)
Now, the length EF is equal to