The outside temperature at midnight was 3.4"C. The temperature then changed at a constant rate of -0.78"C per hour for 8 hours. What was the outside temperature at 8:00 AM?
А
9.64°C
B 9°C
-2.2°C
D) -2.84°C

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.

75%

step-by-step explanation: