Can someone plz help on the part where it says, How can you work backward from 1/3 to check your answer? plzz

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  divide 1 by 3

Step-by-step explanation:

The easiest way to check the answer after converting a repeating decimal to a fraction is to perform the division indicated by the fraction. 1/3 means 1 ÷ 3. When you perform that division, you quickly see the problem repeats, meaning the quotient digit 3 repeats, verifying that you have the correct result.

associative property of multiplication

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!