Which system of equations has a solution of (1,2,3) ОА.
1 + y + 2z = 9
21 + 2y + 3z = 15
1 - 2 = -2
OB.
I + y = 3
y - 2 = 1
I + y + z = 0
Ос.
-21 - 2z = -8
y + 3z = 7
I + y - 3z = -3
D. -35 + 2y + z = 4
I-y + 2z = 5
s-y-2=-2
Please someone for the love of god help me

the function makes a strait line horizontally with no x intercept but a y intercept at 9.

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

the car was traveling 40 mph before it started skidding. ( 2 points ) 17. was the driver were her brakes working at 75% efficiency or better? ( 2 points ) yes 29.

step-by-step explanation: