The 40-ft-long a-36 steel rails on a train track are laid with a small gap between them to allow for thermal expansion. determine the required gap d so that the rails just touch one another when the temperature is increased from t1=-20f to t2=90f. using this gap, what would be the axial force in the rails if the temperature rises to t3=110f? the cross-sectional area of each rail is 5.10 in2

o= 4(i) +3

step-by-step explanation:

o is your output value and i is your input value. so, for example, if we stuck 7 in as our input, we would first multiply by 4 ( pemdas ), which equals 28. then we would add 3 to 28, for a total output of 31. this may not be a graph, but, it is a way to solve your formula..

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