Can someone please help me? If the incandescent 100 - watt light bulb is left on for 168 hours ( a whole week) , and the utility creates 1.2 lbs of carbon dioxide per kilowatt (kwh) , how much carbon dioxide is created by this lightbulb ?

A: 14 lbs of carbon dioxide

B: 0.07 lbs of carbon dioxide

C: 18 lbs of carbon dioxide

D: 20.16 lbs of carbon dioxide

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.