Answer:
infinite amount of solutions.
Step-by-step explanation:
-21=-21-b
-b= -21+21
-b= 0
There is no argument: In real numbers, not only is x/0 undefined for any x, but infinity is not a number, thus it cannot be the result of a division. But there are ways to extend the real numbers (in other words, consider new systems) that do have one or more points at infinity, and some even permit arithmetic to be extended.
Hope I helped
-Liberty 8th grade, Chicago Illinois.
Step-by-step explanation:
Given
for first circle, center is at and radius is units
General equation of circle with center (h,k) and radius r units is given by
for the given circle it is
for second circle center is at (0,-1) and radius is 3 units
Equation is given by
This is an impossible triangle. The rules for determining if a triangle is possible are:
1.) a+b>c
2.) a+c>b
3.) b+c>a
We notice that when sides b and c (5cm and 4cm) are added, they are not greater than side a, so this triangle is not possible.
:)
The difference is tha in algebraic expression, there are variables (ex. 6x + 3x) unlike numerical expression doesn't contain a variable; its just numbers.
Answer:
x=-2+3t , y=-9-10t
Step-by-step explanation:
I'm going to start by solving the first equation for t....which will give (x-x1)/(x2-x1) =t.
You can now substitute this in the second equation to get....y=y1 + (y2-y1)(x-x1)/(x2-x1)
Rearranging, you get y-y1 = (y2-y1) / (x2-x1) * (x-x1) which is equivalent to y-y1= m(x-x1) which is the point-slope formula for a line.
So since t was varying between 0 and 1,
plugging in t=0 you get x=x1 and y = y1 givin you the coordinate (x1,y1)
similarly, plugging in t=1 leads to (x2,y2)
So this is a representation of a segment connecting these 2 points.
B) just plug in the points into your given formula from part a to get...
x=-2 +(1--2)t and y = 9 +(-1-9)t
or x=-2+3t , y=-9-10t