When you went to sleep, the temperature was −2.8°c. when you woke up, the temperature was 1.4°c. which expression and statement describes the situation? a. 1.4< -2.8,so 1.4°c is cooler than −2.8°c. b. -2.8> 1.4,so −2.8°c is warmer than 1.4°c. c. 1.4=1/2(-2.8),so 1.4°c is half as cold as −2.8°c d. 1.4> -2.8,so 1.4°c is warmer than −2.8°c

5500 dollars is placed in an account with an annual interest rate of 6.5%. to the nearest tenth of a year, how long will it take for the account value to reach 19700 dollars?

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)

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?