A bicycle and a biker have a mass of 80 kg traveling at a velocity of 3 m/s. What will happen to the kinetic energy, if the bike
1 answer:
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3x²-x-2=0
Δ=1+24=25 (Δ=b²-4ac)
x₁,₂=
x₁,₂=
x1==6/6=1
x2==
so
x1=1
x2=
The correct answer is A.
You have direct variation if x and y are modeled by the equation
In this case, m is the constant of proportionality. So, if the constant has to be 2, the equation becomes
A side note: Actually, option C has a constant of proportionality of two as well, except the roles of x and y are interchanged. I chose option A because usually you want the y = mx form, but the names of the variables are obviously meaningless.