Step-by-step explanation below.
<span>1) distance formula; d = √(x2-x1)² +(y2-y1)² . d= √(-4-8)² +(-3-7)² = > d= 2√61
diameter = 2*radius => 2√61 =2r => r =√61 => r² =61
midpoint of the diameter is:
Xm= -4-8 /2 -6 => -6
Ym = -1-9 /2 -5 => -5 center of the cirlce is at (-6,-5)
</span><span>general equation of a circle: (x-x1)² +(y-y1)² =r² with (x1,y1) being the center of the circle.</span><span>
equation: (x+6)+(y+5)=61
</span>
Answer:
-12, -11, 4, 12
Step-by-step explanation:
A negative number is less the higher it is, and a positive number is more the higher it is
Answer:
The angle measures are;
36,72, 108 and 144
Step-by-step explanation:
Since it is a quadrilateral
the sum of all the interior angles is 360
so, we have that;
4x + x + 3x + 2x = 360
10x = 360
x = 360/10
x = 36
So each of the angles are as follows;
x = 36
4x = 4(36) = 144
3x = 3(36) = 108
2x = 2(36) = 72
