Answer:
first one is C
the second it is A
Step-by-step explanation:
the equation of a circle=(x-h)^2 + (y-k)^2 = r^2
h and k are the coordinate of the origin of a circle
to find the origin which is the midpoint of the diameter which has end points
(9,1) and (1,9)
h=9+1/2 = 10/2=5
k=9+1/2 = 10/2=5
(x-5)²+(x+5)²=r²
find r which is the half distance of the diameter
d of diameter : √(x2-x1)²+(y1-y2)²
d=√(9-1)²+(1-9)²
d=√8²+8²=8√2
radius=8√2/2=4√2
(x-5)²+(x+5)²=r²
(x-5)²+(x+5)²=(4√2)²
(x-5)²+(x+5)²=32
TR>TS the sides RS and TS are congruent opposite angles are equal.
Answer:
The length of side 8cm is 5cm, while the length of side 15cm is 12cm
L(k)=8(12)+2k
L(k)=96+2k
L(8)=96+2(8)
L(8)=96+16
L(8)=112in
Answer:
x={8,1}
Step-by-step explanation:
8 can factor into -8 & -1. Add -8 and -1 and you get -9. Then, (x-8)(x-1)=0, so x can equal either 8 or 1.
