The answer is C...........
Answer:

Step-by-step explanation:
Given y(3, 1), z(0, 4)
-The ordered pair is written by summing their corresponding coordanates as below:

-We then calculate the magnitude of this ordered pair as following:

Hence, the magnitude of the ordered pair is 
Hello! And thank you for your question!
To find if 3 measurements make a triangle:
Measurements 1 and 3 must be less than 2.
As we can see.. Only A fits. 6 cm and 9 cm is less than 10 cm.
Final Answer:
A. 6 cm, 10 cm, 9 cm
Combine like terms.
adding the 80 and 10 is the simplest part of the equation in the beginning, thus it is the beginning.