There has to be a negative and a positive for each
This is most easily done using the expanded form of the expression.
∫(9 -9t +t² -t³)dt = 9t -(9/2)t² +(1/3)t³ -(1/4)t⁴ +c
Answer:
brainest
Step-by-step explanation:
I just rounded a bunch for your sister.
463 < 500 so 3463 rounds to 3000
216 < 500 so 4216 rounds to 4000
501>=500 so 2501 rounds to 3000
457<500 so 6457 rounds to 6000
625>=500 so 6625 rounds to 7000
adding up the estimates gives an estimated total: 23000
