Answer:
The associative property will be:

So, Option C is the correct option.
Step-by-step explanation:
We need to write the expression that uses the associative property to make it easier to evaluate: 
The associative property of multiplication states that: 
So, For the given expression:

The associative property will be:

So, Option C is the correct option.
Answer:
Yes
Step-by-step explanation:
It is a Pythagorean Triple. A Pythagorean Triple is the sides of a triangle that fit perfectly into the Pythagorean Theorem, which is:
a²+b²=c²
12, 13, and 15 are numbers that you should know off the top of your head so if you see a triangle with 2 of those numbers, you instantly know the 3rd number.
<em>~Stay golden~ :)</em>
Answer:
13 040 000
Step-by-step explanation:
To convert the scientific notation of a large number to a decimal number, move the decimal point as many places to the right as indicated by the exponent of 10.
Use zeros for placeholders as needed.
Move the decimal point seven places to the right
1.304 × 10⁷ = 13 040 000
We had to insert four zeros as placeholders.
1.304 × 10⁷ = 13 040 000
X=100°
y=180°-100°-50°
=30°
I would say sum because you are adding and it is 11r^3+11