The function models the depth of a submarine, where y = 0 is at sea level. Over what interval is the submarine rising? x y = –2x2 (x, y) –3 –18 (–3, –18) –1 –2 (–1, –2) 0 0 (0, 0) 1 –2 (1, –2) 3 –18 (3, –18) A. x < –2 B. x < –1 C. x < 0 D. x > 1

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

What is the explicit formula for this sequence? -7, -4, -1, 2, a.) an = 8 + (b - 1)3 b.) an = -7 + (n - 1)3 c.) an = 3 + (n -1) (-7) d.) an = -7 + (n - )