Answer:
A
Step-by-step explanation:
If you were to do 20 divided by 2 you would get 10
Answer:
B
Step-by-step explanation:
Answer: b=2(square root of 2) and a=4
Step-by-step explanation:
Since this is a 45-45-90 triangle we know that side b is equal to 
.
In a 45-45-90 triangle, the hypotenuse is equal to 
this means in order to find missing side length a, we have to multiply 
this will give us 4
so the missing side lengths are, and 
Answer:
(-3, 1), 5
Step-by-step explanation:
x² + y² + 6x - 2y - 15 = 0
Rearrange:
x² + 6x + y² - 2y = 15
Complete the square:
x² + 6x + 9 + y² - 2y + 1 = 15 + 9 + 1
(x + 3)² + (y - 1)² = 25
Therefore, the center is (-3, 1) and the radius is 5.
Answer:
6x + 2
Step-by-step explanation:
Perimeter = 2(x + 4) + 2(2x - 3) = 2x + 8 + 4x - 6 = 6x + 2
