Evelyn throws a rock off a cliff towards the ocean. The path of the rock is modeled by the equation r(t) = -5t2 + 5t + 14 with r representing the height in feet and t as time in seconds.

(Any answer is help with well explained responses please!!)

Maria walks a round trip of 0.75 mile to school every day. how many miles will she walk in 4.5 days

Formulate the indicated conclusion in nontechnical terms. be sure to address the original claim. the foundation chair for a hospital claims that the mean number of filled overnight beds is over 523, and she is therefore justified starting a funding campaign to add a wing to the hospital. assuming that a hypothesis test has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms.

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25