Answer:
12
Step-by-step explanation:
first multiply 6 and 4.
then divide by 2.
Completing the squares tells us exactly what square root we will need to calculate our answer.
Using the formula below you can find these answers:

Does this make sense?
Answer: r = 1
Step-by-step explanation:
The slope of a line can be represented as
. Plugging in the following values would provide you with:




Hope it helps :) and let me know if you want me to elaborate on anything.
Yes, you can put parenthesis inside of parenthesis.
Answer:
Option A.
Step-by-step explanation:
12 cm, 17cm, 25 cm