A tropical fish requires a water temperature between 70 and 80 degress Fahrenheit, inclusive. An aquarium is heated 5 degrees so that the tropical can live in it. What temperatures could the water have been before the heating?

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?

Factor x2 – 8x + 15. which pair of numbers has a product of ac and a sum of what is the factored form of the

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)