y=-2x+8
y=x-1
Solve y=-2x+8 for y
Substitute -2x+8 for y in y =x-1
y=x-1
-2x+8=x-1
Add -x to both sides
-2x+8+-x=x-1+-x
-3x+8=1
Add -8 to both sides
-3x+8+-8=1+-8
-3x=-9
Divide both sides by -3
-3x/-3=-9/-3
x=3
Substitute 3 for x in y =-2x+8
y=-2x+8
y=(-2)(3)+8
Simplify both sides of the equation
y=2
Answer : y=2 and x=3
(3,2)
I hope that's help !
When given 3 triangle sides, to determine if the triangle is acute, right or obtuse:
1) Square all 3 sides.
2) Sum the squares of the 2 shortest sides.
3) Compare this sum to the square of the 3rd side.
if sum > 3rd side² Acute Triangle
if sum = 3rd side² Right Triangle
<span>if sum < 3rd side² Obtuse Triangle
</span>
1) 144
<span>
<span>
<span>
1,225
</span>
</span>
</span>
1,369
144 + 1,225 = 1,369
Therefore, it is a right triangle.
Source:
http://www.1728.org/triantest.htm
Answer:
8.1
Step-by-step explanation:
Answer:
It depends. See below.
Step-by-step explanation:
Consider the numbers that lie between
and
as ![x](https://tex.z-dn.net/?f=x)
If
, there are infinity numbers between 121 and 144.
If
for
there are 23 integers numbers between them.