3 years ago

Please Help Me with this Step by step: 12-(3x+13)=0

Mathematics

1 answer:

Vesna [10]3 years ago

3 0

Distributive property
12-3x-13 = 0
Combine like terms
-1-3x = 0
-3x = 1
Divide by -3
x = -1/3

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3 years ago

Calculate the velocity of a moving train with a mass 10,000kg and 150,000J of energy.

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Kinetic energy possessed by moving train is $E_k = 150000J$ .

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Solve for velocity:

$E_k = \frac{m\times v^2}{2}\implies 2E_k = m\times v^2$

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