Area of circle = πr²
Area of circle = π(4÷2)² = 12.57 cm²
Y-intercept, it can be described as y-intercept form, or another way of writing it in mathematical form is y=mx+b, this can be used to draw polygons, find ortho-centers (very difficult), etc. m is the rise/run, rise over run, or 1/2. The rise and the run is the rate of change. b is the starting point or slope where it starts at, that is most of it!
Answer:
A=hb b/2
Step-by-step explanation:
area=height(sub)base times base divided by 2
This is a true statement, or false depending on whether Alfonso actually did or not. There's no proof.
Answer:
The answer is 1
Step-by-step explanation:
Formula for finding the slope: 
Take y2 and y1 from (4,<u>4</u>) (1,<u>1</u>)
Take x2 and x1 from (<u>4</u>,4) (<u>1</u>,1)
This is how the answer is 1
Hope it helps :)
