X^3+3x^2-18x-3x^2-9x+54
————-
Final answer=
X^3-27x+54
I hope you understand my explanation and best of wishes!!
Answer:
-7°C
Step-by-step explanation:
Freezing point of water = 0°C
By adding salt, freezing point lowers by 7°C ;
The freezing point of salt water can be expressed as ;
Since temperature lowers :
Freezing point of salt water :
Freezing point of water - 7°C
0°C - 7°C
= - 7°C
Use the Sum of Angles In a Triangle therom.
