A steel beam is supported by two pilings 200 feet apart. If a weight is placed "x" feet from the piling on the left, a vertical deflection represented by d = 0.000008x^2(100 - x) occurs. How far is the weight from the piling if the vertical deflection is 0.5 feet?

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exa:

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3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.