A 60-watt bulb that is illuminated day and night for 30 days consumes how much energy

(08.01)consider the following pair of equations: x + y = −2 y = 2x + 10 if the two equations are graphed, at what point do the lines representing the two equations intersect? (−4, 2) (4, 2) (−2, 4) (2, 4)

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !