a. The center of the circle will be the coordinate point of the marked point inside the circle.
center: (3,-5)
The radius is the distance between the center and any point on the circle.
radius: 4 units
b. standard form for circles: (x-h)²+(y-k)²=r² where (h,k) is the center
standard form: (x-3)²+(y+5)²=16
c. Simplify equation in standard form to get general form.
(x-3)²+(y+5)²=16
x²-6x+9+y²+10y+25=16
general form: x²+y²-6x+10y+18=0
Hope u find this useful!
-15a - 9c -6 should be right :)
Answer:
15 * 20 / 6
Step-by-step explanation:
1. Find the area of the room, 300.
2. Just divide 300 from 6
3. you get 50 tiles
4. It's asking for an expression, so 15 * 20 / 6
<span>trapezoid area = ((sum of the bases) ÷ 2) • height
height = </span>trapezoid area / ((sum of the bases) ÷ 2)
height = 43.5 / ((6 + 8.5) / 2)
height = 43.5 / ((14.5) / 2)
height = 43.5 / (7.5)
height = 6 centimeters
Source:
http://www.1728.org/quadtrap.htm
Answer:
81 miles
Step-by-step explanation:
378/14=27
The unit rate is 27 miles per hour
27*3 = 81
