Answer:
x=2
Step-by-step explanation:
x=2 in the equation 3x+5=19-4x
2850*24/(4*24+18)
The light bulb consumes 600 watt-hours per day.
Answer:
option B

Step-by-step explanation:
we know that
The<u> correlation coefficient</u> r measures the direction and strength of a linear relationship.The value of r is always between
and 
Using a Excel tool (Correl function)
see the attached table
The value of r is 