Answer:
C. x+y = 1 and -x-y = -1
Step-by-step explanation:
Remember that if a system of equations has an infinite number of solutions, then the resulting equation from using the first step of the elimination method would have no variables and would be true.
1) Let's try canceling out the equations in option C, x+y =-1 and -x-y =-1. Add the two equations together. (Work shown in attached picture.)
2) All of the terms cancel out with each other, leaving only a true statement of 0 = 0. Thus, option C is the answer.
Answer:
C
Step-by-step explanation:
calculate the slope m using the slope formula
m = 
with (x₁, y₁ ) = (0, 2) and (x₂, y₂ ) = (4, 0) ← 2 points on the line
m = 
= 
= - 
the y- intercept is the value of y where the line crosses the y- axis , then
y- intercept = 2
This is a sum and difference problem, with the equations
R-N=35
R+N=635
The solution of which is
R=(635+35)/2=335
N=(635-35)/2=300
In general, the sum and difference problem can be solved (most of the time mentally) using
Larger number = (sum + difference)/2
Smaller number = (sum - difference)/2
(A ∩ B) means "A intersection B". Your problem statement tells you the intersection contains
{3, 4}
Answer: The Answer to this is
The line representing the number of screws required to assemble x of Bookcase B is steeper than the line representing the number of screws required to assemble x of Bookcase A because there are more screws used in each Bookcase B than in each Bookcase A.
Step-by-step explanation:
<h2>This is a thing I wish other people should do so here's the rest of the three answers. the answer for −3.1□−2.4 is <u> </u><u>
<em><</em></u>. The answer for −3/5□−2/3 is <u>> </u>, and the answer for this number 4 is <u>The line representing Bicyclist A is steeper than the line representing Bicyclist B, therefore Bicyclist B is moving at a slower rate.</u></h2><h2>I hope this helps.</h2><h2><u>
</u></h2><h2><u>
</u></h2><h2><u> </u></h2><h2><u>
</u></h2><h2><u /></h2>
