A train departs from New York City and travels toward Chicago traveling at an average speed of 75 miles per hour. What best desc
ribes the train's distance from Chicago as time increases?
2 answers:
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Answer: " -2y³ + 3y²<span> + 27y " .
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Refer to the completed chart below (image attached).</span>
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Using the completed chart below (image attached), we can write out the terms:
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y³ − 3y³ + 9y² + 3y² − 9y² + 27y ;
Then, we can combine the "like terms" ;
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y³ − 3y³ = -2y³ ;
+9y² + 3y² − 9y² = + 3y² ;
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to get: -2y³ + 3y² ; and bring down the "+27y" ;
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Answer: " -2y³ + 3y²<span> + 27y " . </span>Refer to chart below (image attached).
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_______________________________________________________
Refer to the completed chart below (image attached).</span>
_______________________________________________________
Using the completed chart below (image attached), we can write out the terms:
__________________________________________________
y³ − 3y³ + 9y² + 3y² − 9y² + 27y ;
Then, we can combine the "like terms" ;
__________________________________________
y³ − 3y³ = -2y³ ;
+9y² + 3y² − 9y² = + 3y² ;
___________________________________________________________
to get: -2y³ + 3y² ; and bring down the "+27y" ;
___________________________________________________________
Answer: " -2y³ + 3y²<span> + 27y " . </span>Refer to chart below (image attached).
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