Answer:
-5h - 2
Step-by-step explanation:
3h - 2(1+4h)
Let's first get rid of the ( ) by performing the multiplication:
3h - 2*1 + -2*4h = 3h - 2 - 8h
Now we can subtract 8h from 3h, and that's as simple as it gets:
3h - 2 - 8h = -5h - 2
You basically plug in the x values with the given function so the y values are -5,-10,-15,-20
Answer:
It will take 58 seconds
Step-by-step explanation:
If you have 1 kg of water in the jar, half of it will be 0.5 kg.
To vaporize half of the water (0.500 kg) the energy supply needed is

If the stove is supplying 20 kJ/s, the time its needed is

It will last at least 58 seconds to vaporize half of the water.
Answer:
C. 150
Step-by-step explanation:
60+150+120+270=600
600/4=150