Answer:
Solving the given linear system, we get x = 1 and y = -3.
The solution set is: (1,-3)
Step-by-step explanation:
We need to solve the linear system of equations.

We can write second equation y=x-4 as: 
Let:

Now, Adding equation 1 and 2

So, we get x = 1
Now, put value of x in second equation to find value of y:

So, we get y = -3
Solving the given linear system, we get x = 1 and y = -3.
The solution set is: (1,-3)
If x approach infinity then (x² + 1)/(2x² +1) = 1/2 then lim as x approach infinity
lim y = arccos 1/2 = 1.047
Answer:
C (1,2)
Step-by-step explanation:
The point that is a solution must satisfy both inequalities;
The inequalities are;


Point A

: True
:False
Point B (0,4)
: False
:True
Point C (1,2)
: True
:True
Point D(-2,-4)
: True
:False
The correct answer is C.
Answer:
6.5
Step-by-step explanation:
6.5+(3.5*2)-7/3
6.5+(7-7)/3
6.5+0/3
6.5+0
6.5
Answer: -7/3
Step-by-step explanation:
Perpendicular lines have slopes that are negative reciprocals of each other.