Answer and Step-by-step explanation:
Given
ax + by = c
qx + ry = s
(a) the equation has no solutions if a/q = b/r ≠ c/s, when this happens, we say the system of equations has no solution. For example
x + y = 3
x + y = 5
Subtracting first equation from the second we have:
0 = 2 which is impossible.
(b) the equations have infinite solutions if a/q = b/r = c/s, for example
x + y = 2
x + y = 2
Subtracting the first equation from the second we have
0 = 0, since this is always true, then it has infinite solutions.
(c) the equations have unique solutions if a/q ≠ b/r, for example
x + y = 2
x – y = 1
Adding the first and second equation we have
2x = 3, we can get x from here and definitely y, so we have just one solution.
According to the given table, the slope-intercept equation of the line is given by:
The equation of a line, in <em>slope-intercept</em> form, is given by:
In which:
In this problem, we are given two points, (3,-5) and (-2,5).
- The slope is given by <u>change in y divided by change in x</u>, hence:
Hence:
Point (3,-5) means that when 
, which is used to find b.
Hence, the equation of the line is:
A similar problem is given at brainly.com/question/24685547
A part of a line that connects two endpoints I believe
Answer:
4.8 miles per hour.
Step-by-step explanation:
Average speed=Total distance/Time taken
=26.2miles/5.5hour
=4.8 miles per hour
Answer:
31 9/10
Step-by-step explanation:
if u want to find out how many pounds u lose u subtract 230 1/2 by 198 3/5
230 5/10 minus 198 6/10
31 9/10
hope this ehlps
