Answer: x=-1
Step-by-step explanation:
−10+x+4−5=7x−5
−10+x+4+−5=7x+−5
(x)+(−10+4+−5)=7x−5(Combine Like Terms)
x+−11=7x−5
x−11=7x−5
Step 2: Subtract 7x from both sides.
x−11−7x=7x−5−7x
−6x−11=−5
Step 3: Add 11 to both sides.
−6x−11+11=−5+11
−6x=6
Step 4: Divide both sides by -6.
−6x
−6
=
6
−6
x=−1
Try number 1 hope it’s correct
Answer:
O : (-3,-4.5)
Step-by-step explanation:
center of circle: O (x.y)
Radius (r) = OA = OB = OC
r² = (x - (-1))² + (y - (-2))² ---- OA²
r² = (x - (-5))² + (y - (-2))² ---- OB²
r² = (x - (-1))² + (y - (-7))² ---- OC²
OA²=OB² : (x - (-1))² + (y - (-2))² = (x - (-5))² + (y - (-2))²
(x+1)² - (x+5)² = 0 x²+2x+1-x²-10x-25 = 0
8x = -24
x = -3
OA² = OC² (x - (-1))² + (y - (-2))² = (x - (-1))² + (y - (-7))²
y²+4y+4 = y² +14y +49
10y = -45
y = - 4.5
O : (-3,-4.5)
Answer:
69cm ^2
Step-by-step explanation:
