Answer: Diameter = 4 cm
Step-by-step explanation:
20π = (π)(r^2)(5)
divide by 5 * π
4 = r^2
find the square root of both sides
2 = r
2 * 2 = d
4 = d
Answer:
y = 2x + 3
Step-by-step explanation:
A line parallel to y = 2x has exactly the same slope but a different y-intercept, b.
Start with y = mx + b, and replace m with 2, y with -1 and x with -2:
-1 = 2(-2) + b, or
-1 = -4 + b.
Then b = 3, and the desired equation is y = 2x + 3
Answer: 
* Hopefully this helps:) Mark me the brainliest:)!!
The triangle is an equiangular triangle so that means it must be an equilateral triangle.
3x - 3 = x + 8
2x = 11
x = 5.5
BC = 3(5.5) - 3
BC = 13.5
