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Delicious77 [7]
2 years ago
12

Help! asap! algebra 2

Mathematics
1 answer:
Rudik [331]2 years ago
5 0

We can subtract the function that represents the cost in 2000 from the function that represents the cost in 1990.

Doing this gives us (-20t^{2}+1000)-(-10t^{2}+1500)=\boxed{-10t^{2}-500}

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