X + 2y = -6
2y = -x - 6
y = (-x - 6)/2
answer is D. Last one
y = (-x - 6) / 2
Answer:
A: 28
Explanation:
Vertical angles are congruent.
7 > x/4
Step 1) we multiply each side by 4
7 times 4, 4 times x/4
28> x
Answer:
14/3 or 14:3
explanation of LIFE jk jk
I am very sorry if I am wrong
Stand form of a circle is (x-h)²+(y-k)²=r², (h,k) being the coordinates for the center of the circle, r is the radius.
use the given three points to find the three unknown constants h, k, and r
(3-h)²+(1-k)²=r²
(-2-h)²+(6-k)²=r²
(-5-h)²+(-3-k)²=r²
expand these three equations:
9-6h+h²+1-2k+k²=r²
4+4h+h²+36-12k+k²=r²
25+10h+h²+9+6k+k²=r²
subtract equation 1 from equation 2, you get: 10h-10k=-30, h-k=-3
subtract equation 2 from equation 3, you get: 6h+18k=6, h+3k=1
subtract one form the other: 4k=4, k=1
h=1-3k=-2
find r²: (3+2)²+(1-1)²=r², (r=5)
so the equation is (x+2)²+(y-1)²=5²
