Evaluate
140.45-16t^{2}
Factor
-\frac{320t^{2}-2809}{20}
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-16t^{2}+136.25+4.2
Multiply -\frac{1}{2} and 32 to get -16.
-16t^{2}+140.45
Add 136.25 and 4.2 to get 140.45.
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