Use the pythagorean therom. 12 squared + 3 squared = x squared
So the answer is 12.4 feet
45 percent because it's purpose is not to make light, but heat. Since that is excess wasted energy, you would subtract the wasted energy from the units of energy used for the desired task (50-5) and it would give you 45
Answer: m=−y+3−x+2
x=2m+y−3m
Step-by-step explanation:
m(2−x)=3−y
Step 1: Factor out variable m.
m(−x+2)=−y+3
Step 2: Divide both sides by -x+2.
m(−x+2)−x+2=−y+3−x+2
m=−y+3−x+2
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m(2−x)=3−y
Step 1: Add -2m to both sides.
−mx+2m+−2m=−y+3+−2m
−mx=−2m−y+3
Step 2: Divide both sides by -m.
−mx−m=−2m−y+3−m
x=2m+y−3m
If sound travels through air at around 13 of a kilometer per second, and thunder is heard 6 seconds after a flash of lightning, it would be 78ths of a kilometer. Although, I can't simplify that for you. Sorry. ^-^
