A circular plot is watered by a sprinkler that rotates through it. The sprinkler only rotates through a semi-circle, or half of the whole circle.
Area of a circle: A = pi x r^2
r = 160 / 2 = 80
A = pi x 80^2
A = 6400pi / 2 = 3200pi
3200pi = 10053.0965
The area water is approximately 10,053 ft^2.
Hope this helps!! :)
bear in mind that it goes with the "degree" of the polynomial.
when given two points, you can find the slope of the line that passes through those points by using the slope formula
7. A(1,3), B(4,7)
(the ordered pair you choose to use for x1,y1 could be the other ordered pair, it doesn't really matter)
plug in
8. C(3,5), D(-2,6)
plug in
9. E(-4,0), F(5,5)
plug in
10. K(-4,4), L(-5,4)
plug in