![|-x|=|(-1)x|=|-1||x|=|x|](https://tex.z-dn.net/?f=%7C-x%7C%3D%7C%28-1%29x%7C%3D%7C-1%7C%7Cx%7C%3D%7Cx%7C)
You probably already know that the range of
![|x|](https://tex.z-dn.net/?f=%7Cx%7C)
is all non-negative real numbers, right?
Answer:
x = 77
y = 72
z = 31
Step-by-step explanation:
The formula for the Perimeter of triangle XYZ = x + y + z
From the question:
x + y + z = 180
In the triangle, x is 5 greater than y,
x = y + 5
y is 21 less than three times z
y = 3z - 21
3z = y + 21
z = y + 21/3
Hence:using substitution
x + y + z = 180
y + 5 + y + y/3 + 21/3 = 180
2y + y/3 + 5 + 21/3 = 180
2y + y/3 = 180 - ( 5 + 21/3)
2y + y/3 = 180 - (5 + 7)
2y + y/3 = 180 - 12
2y + y/3 = 168
Multiply both sides by 3
2y × 3 + y/3 × 3 = 168 × 3
6y + y = 504
7y = 504
y = 504/7
y = 72
Solving for x
x = y + 5
x = 72 + 5
x = 77
Solving for z
z = (y + 21)/3
z = (72 + 21)/3
z = 93/3
z = 31
Therefore,
x = 77
y = 72
z = 31
I see your doing trinomials. It would be prime because nothing <span>adds to negative ten and multiplies to six.</span>
This is the measure of perimeter. P = 2l + 2w. P = 2(75.4) + 2(50.8) That tells us that we have to buy 252.4 feet of fencing.
Answer:
Well, Your answer is 12 units.
Because, It was on edgunity
Good Luck with your homework!!~