Answer: 17 centimeters
Step-by-step explanation:
The perimeter of a triangle is all 3 sides added up
x+y+z=p
Substitute 14 in for x, 18 in for y and 49 in for p
14+18+z=49
Add on the left side
32+z=49
Subtract 32 on both sides
z=17
So, the third side is 17 centimeters
Hope this helps! :)
Answer:

Step-by-step explanation:
Given

Quadrant III
Required
Determine 
We have:

We know that:

This gives:


Collect like terms

Take LCM and solve


Take the square roots of both sides

Sin is negative in quadrant III. So:

Calculate 

We have: 
So:


Rationalize


So, we have:



Substitute: 

Take LCM

Answer:
1. congreunt; reflection
2. not congruent
3. congruent; rotation & translation
4. 64 cm
5. 62 degrees
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
-2 x 6 = -12
-6/1 ÷ -3/1 = 2
-12 - 2 = -14
-14 ÷ -2 = 7
This demonstrates the associative property