Evaluate the geometric series:
3 - 9+27 – 81..., n= 6

The long jump record, in feet, at a particular school can be modeled by f(x) = 19.6 + 2.5ln(x + 1) where x is the number of years since records began to be kept at the school. what is the record for the long jump 11 years after record started being kept? round your answer to the nearest tenth.

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.