Question 5 Answer & Explanation - SAT Algebra

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algebra

Solve for $m$ : $E = mc^2$

m = E - c^2

m = c^2 / E

m = E / c^2

m = Ec^2

Correct Answer: C

Choice Dhoice A is the correct answer.

Start: $E = mc^2$
Divide by $c^2$ : $m = \frac{E}{c^2}$

Choice Dhoice D is incorrect because subtracted.

Choice Dhoice C is incorrect because inverted.

Choice Dhoice B is incorrect because multiplied.

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