You have to complete the square on this to get it into standard form of a circle. Move the 8 over to the other side because that's part of the radius. Group together the x terms, take half the linear term which is 8, square it and add it in to both sides. Half of 8 is 4, 4 squared is 16, so add in 16 to both sides. I'll show you in a sec. You don't need to do anything to the y squared term. This just means that the center of the circle does not move up or down, only side to side, right or left. Here's your completing the square before we simplify it down to its perfect square binomial.
. Now break down the parenthesis into the perfect square binomial and do the addition of the right:
. This is the standard form of a circle that has a center of (4, 0) and a radius of
Answer:
1176
Step-by-step explanation:
All you have to do is add 1168 plus 38 would be 1176.
Answer:
90 degree's
Step-by-step explanation:
Two angles are called complementary when their measures add to 90 degrees. Two angles are called supplementary when their measures add up to 180 degrees
Answer:
502.4 square inches
Step-by-step explanation:
To find the area of the shaded region, you first need to find the area of the smaller circle with diameter 12, and then subtract that from the area of the larger circle. Since the diameter of a circle is twice the radius, the radius of the smaller circle is 6, and its area is therefore:
The area of the larger circle, which has radius 6+8=14, is:
Subtracting the area of the smaller circle from his, you get an area of 502.4 square inches for the shaded area. Hope this helps!
Answer:
130 degrees
Step-by-step explanation:
when an angle is in a circle it equals the same degrees as the curve in front of it except you divide by 2. So if the curve ARC is 100 degrees and a circle is 360 degrees,
360-100= 260
260/2 = 130
hope i helped!
