Answer:
6root2 × 6root2
you have to use pythagoras
a²+b²=c²
c=12
12²=144
a²+b²=144
but it is a square so I'll just change a and b to x because it shows they are equal
x²+x²=144
2x²=144
x²=72
x=6root2
Answer:
<h2>
D. aₙ = 5n - 11</h2>
Step-by-step explanation:
The equation of the nth term of the arithmetic sequence is: 
d = 9 - 4 = 5
a₁ = -6
Therefore:

Answer:
76
Step-by-step explanation:
Use .25 to represent the 1/4 of a mile.
Since it is a given radius around the boulder, we would treat it as such and find the area of the circle around the boulder.
To do this, you do .25² * 3.14
.0625 * 3.14 = .19625
15/.19625 = 76 and some change, but you need to round down to 76
Answer is 76.
Answer:
2/8 (could be simplified to 1/4)
Step-by-step explanation:
There are 8 total possibilities, and there are two A's
-6.5 centimeter per second
-19.5 divided by 3 is -6.5