Suppose the length of time cats sleep each day is normally distributed with a mean of 15 hours and a standard deviation of 2 hours. which group describes 16% of the cat population? select each correct answer. cats that sleep more than 17 hours a day cats that sleep less than 13 hours a day cats that sleep more than 19 hours a day cats that sleep less than 11 hours a day

The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?

What is the prime factorization of 230

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 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)