Answer: A) 15
Step-by-step explanation:
Because of Pythagorean Theorem, 9^2+12^2=BC^2. Thus, 81+144=BC^2. Thus, 225=BC^2. Thus, 15=BC.
Hope it helps, and ask if you want further clarification <3
Answer:
Della must buy 11 packs of batteries to get free shipping
Answer:
Option d) is correct
That is x equals plus or minus start fraction 11 over two end fraction
Step-by-step explanation:
Given quadratic equation is 
To write the given quadratic equation by using a difference-of-squares factoring method:

The above equation can be written as


The above equation is in the form of difference-of-squares
Therefore the given quadratic equation can be written in the form of difference-of-squares
by factoring method is 
(which is in the form
)
2x+11=0 or 2x-11=0
or 
or 

Therefore option d) is correct
That is x equals plus or minus start fraction 11 over two end fraction
Answer:
1,2,3,4, and 6
Step-by-step explanation:
Answer:
I believe that the reciprocal of -1
Hope this helps
Step-by-step explanation: